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4[[quoteright:350:[[VideoGame/TeamFortress2 https://static.tvtropes.org/pmwiki/pub/images/119thUpdateCelebration_6277.png]]]]
5[[caption-width-right:350:This was meant to be the 100th update.\
6[[ScheduleSlip Valve Time happened.]]]]
7
8->''"I will not celebrate meaningless milestones."''
9-->-- '''Bart's [[CouchGag chalkboard gag]]''', ''WesternAnimation/TheSimpsons'', "[[Recap/TheSimpsonsS5E19SweetSeymourSkinnersBaadasssssSong Sweet Seymour Skinner's Baadasssss Song]]" (100th episode)
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11%% One quote is sufficient. Please place additional entries on the quotes tab.
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13
14Show pilots are a very tricky process. They are made, and even if they get a chance on the air, the vast majority of them fail within a few weeks. With other shows, they will sometimes build up a dedicated audience that will fail to keep the show alive long enough. [[TheFireflyEffect Most of the time]].
15
16Most full television seasons are between 20 and 26 episodes long. There are various exceptions; shows can run from 13 episodes to well over 40 episodes. With such a vicious market, the ability to reach the ''100'' episode mark is a rare and coveted thing. So when a show does achieve that milestone, they plan something big to not only draw ratings, but to break out into the [[EpisodeCodeNumber three-digit episodes]].
17
18Part of the celebration is that pure money is offered with syndication rights, which a general rule of thumb is to have 100 episodes to air in certain time slots like ''Nick at Nite'' does. Because the show was already financed and produced, this will bring in the nostalgic viewers without much effort.
19
20This is not inherently just for television series, but any property that has had a [[LongRunners consistent run]] will either celebrate the installment count or in the form of "10 Year Anniversary." This will often coincide with the VerySpecialEpisode, but it could also be TonightSomeoneDies or a ContinuityCavalcade with InternalHomage, especially when elements (or even the entire plot) of the series' first installment is directly recreated. It may avoid all of that and the installment is just given an additional polishing to make it one of the best episodes of the series.
21
22But no matter what, remaining in the public view for years is an impressive event in ''any'' form of media.
23
24Compare MeaningfulReleaseDate. Not to be confused with MilestoneBirthdayAngst, which is when a character dreads a specific milestone age.
25
26''Remember, Administrivia/ExamplesAreNotRecent.''
27----
28!!Examples
29[[index]]
30* MilestoneCelebration/AnimeAndManga
31* MilestoneCelebration/ComicBooks
32* MilestoneCelebration/{{Film}}
33* MilestoneCelebration/LiveActionTV
34** ''MilestoneCelebration/DoctorWho''
35* MilestoneCelebration/VideoGames
36* MilestoneCelebration/WesternAnimation
37[[/index]]
38
39[[foldercontrol]]
40[[folder:Audio Play]]
41* To celebrate the tenth anniversary of ''AudioPlay/TheConfessionsOfDorianGray'' not only was a special audio titled ''The Anniversary'' made, but a ten minute long LiveActionAdaptation of the series was made with Creator/AlexanderVlahos reprising his role as the main character.
42[[/folder]]
43
44[[folder:Asian Animation]]
45* In March 2021, 10 years after ''Animation/BoBoiBoy'''s [[Recap/BoBoiBoyS1E1TheBeginning first episode]] aired, the studio uploaded an [[https://youtu.be/T8_7uS-XIw8 extended version of that episode]]. It adds a newly animated prologue and epilogue [[spoiler:featuring the then-recently revealed [[Animation/{{Mechamato}} Amato and MechaBot]], the former being [=BoBoiBoy's=] loving father [[DisappereadDad who was all but absent to the audience until then]] due to his space superhero job]], as well as remakes of the show's ThemeTune and credits song. The theme song sounds more energetic, while the formerly energetic credits song is done in a slower, nostalgic ballad style with an {{Art Shift}}ed credits sequence [[CallForward depicting moments to come later in the series]].
46* To celebrate ''Animation/PleasantGoatAndBigBigWolf'''s 10th anniversary, ''Amazing Pleasant Goat'', the seventh film in the show's film series, has a scene right at the end of the film where the characters wish the series a happy 10th anniversary. The film released the year of the celebration, 2015.
47[[/folder]]
48
49[[folder:Fan Works]]
50* ''Fanfic/BlackenedSkies'' offers an in-universe example. Monokuma claims that one of the murders counts as the 50th murder he's overseen. In order to mark the occasion, he [[spoiler:gives the killer an extra advantage by knocking everyone else out for fifteen minutes]].
51* ''Fanfic/TheBridge'''s second anniversary featured an animated Q&A video. Unfortunately, it was released a month late due to technical difficulties. For the seventh aniversary, the author wrote the fun spin-off ''[[https://www.fimfiction.net/story/474506/the-bridge-birthday-bash-chibi-moons-quest-for-cake The Bridge: Birthday Bash! Chibi Moon's Quest For Cake!]]''
52* ''Fanfic/CalvinAndHobbesTheSeries'' has an in-universe example in "The Case of the Rogue Water Balloon", wherein G.R.O.S.S. celebrates its second anniversary and its 500th water balloon attack.
53* ''Fanfic/ChasingDragons'':
54** For the yearly anniversaries of when the story began, the author posts snippets of in-universe media from the far future of the timeline (roughly equivalent to the modern real world).
55** The 100th chapter isn't a story post, but rather an appendix listing all the major characters, organizations, and conflicts (as of that writing).
56* ''Fanfic/ForTheGloryOfIrk'':
57** To celebrate the one-year anniversary of the story first being published, the author did a Q&A session with the readers, opening the reviews/comments to questions in Chapter 53 and posting answers in Chapter 54.
58** After the main story was wrapped up, the author did another Q&A session at the end of the bonus Chapter 67.
59** For the one year anniversary of the story's official completion, the author posted a two-part special event chapter.
60* A significant chapter of ''Fanfic/MegaManReawakened'' was posted just before the fic's second anniversary.
61* ''Webcomic/NaruHinaChronicles'':
62** In this webcomic that's in black and white, pages that reach to any multiple of 1000 are usually fully colored.
63** For the 100th chapter, mattwilson83 (the creator of ''NHC'') decided to have it be completely inked.
64** In regards to ''Naru-Hina Chronicles Mini-sodes'': The 50th Mini-sode had its first panel entirely in color. For the 100th, the entire Mini-sode was in color. For the 200th, not only is it twice the length of other Mini-sodes, but it shows Naruto and Hinata meeting [[Rule63 Naruko and Hinago from the gender-reversed alternate universe]] for the first time, while also introducing [[Rule63 Naruko]] and Hinata from the second AU, AKA the Yuri-verse.
65* There is [[https://www.fimfiction.net/group/213885/the-not-so-cynical-creators-guild/thread/446327/yesterday-was-the-second-anniversary-of-this-group-being-made a thread]] and a [[https://www.fimfiction.net/story/476563/invasion-of-the-livid-bread story]] commemorating the second anniversary of Fanfic/TheNotSoCynicalCreatorsGuild group on Platform/FimfictionDotNet.
66* ''Fanfic/OnceUponAStudioVersionTwoPointOh'': This extended version of Creator/{{Disney}}'s [[WesternAnimation/OnceUponAStudio centenary short]] takes the occasion even more seriously, and shows the pressure of said anniversary to be the ''real'' reason why Goofy's attempt at the photo ends in failure, as the anxiety of the centennial simply becomes too much for many of the characters.
67** In this particular case, WesternAnimation/{{Cinderella}}, [[WesternAnimation/{{Tangled}} Rapunzel]] and their respective princes take charge of the situation; Raps starts up a new and even more epic rendition of [[WesternAnimation/{{Pinocchio}} "When You Wish Upon a Star"]] on her guitar, and Cinderella sings the first two lines "When you wish upon a star/Makes no difference who you are", before handing over to [[WesternAnimation/BeautyAndTheBeast Belle and the Beast]]. The song steadily gains momentum as more and more characters join in, with others still helping Goofy undo his earlier mistake. This even includes a moment with [[WesternAnimation/TheLittleMermaid Ariel and Eric]], Rapunzel and Eugene and [[WesternAnimation/{{Aladdin}} Aladdin and Jasmine]] joining hands to sing the start of the final verse, followed by a surprise duet from [[WesternAnimation/{{Tarzan}} Tarzan and Jane]], before Cinderella and the Prince gently finish it off. Mickey and Cinderella then eagerly invite everyone gathered to join in for the final verse, and Cinderella [[BreakingTheFourthWall even extends this to the audience]]. Everyone then proudly sings the final verse together as a unified whole, [[MusicalNod before Cinderella and the Prince gently sing the first line of "A Dream Is a Wish Your Heart Makes" to the audience, followed soon after by Rapunzel and Eugene singing the opening to the chorus of "I See The Light" and Aladdin and Jasmine doing the same for "A Whole New World"]], before all the characters triumphantly sing the final line "Your dreams come true!", as Tinker Bell finally creates the photo.
68** This final group photo is, if anything, even more spectacular than that of the existing OUAS, as it now features Yo-Yo Flamingo and the Spring Sprite from WesternAnimation/Fantasia2000 on the roof of the animation building, along with [[WesternAnimation/{{Moana}} Moana's father, Chief Tui]], standing proudly between her and Cinderella, and even [[GhostReunionEnding the spirit]] of [[WesternAnimation/TheLionKing1994 Mufasa]] watching happily from above.
69* Chapter 50 of ''Fanfic/TheParselmouthOfGryffindor'' is something of a WhamEpisode: Harry and Snape [[spoiler:see Lily again thanks to the Resurrection Stone]], ''and'' it ends on the CliffHanger of Mad-Eye Moody announcing that [[spoiler:"Azkaban has fallen"]].
70* The writers of the ExpandedUniverse of ''Fanfic/PokemonResetBloodlines'' have occasionally made a few of these. Viroro-kun's Dude Gaiden celebrates both his first anniversary and it is the 50th sidestory to be posted, while partner555 and Fox [=McCloude=] followed suit with the Jane Jackrum Interlude and the Sir Aaron & Lucario Gaiden respectively for their own anniversaries. Later, the collaborative 100th Sidestory Special - The Glitch War celebrates ExactlyWhatItSaysOnTheTin[[labelnote:*]]While it's not the 100th sidestory to be posted overall, it is the 100th that takes place in the main timeline, since there are two that came prior that take place in alternate timelines[[/labelnote]].
71* Starting with Episode 50 ("[[WesternAnimation/TheSpongeBobSquarePantsMovie The Pokémon Squad Movie]]"), ''Fanfic/ThePokemonSquad'' would have one of these every 25 episodes, always a WholePlotReference to a real movie. In particular, Episodes 100 and 200 ("[[WesternAnimation/TheSimpsonsMovie The Ketchums Movie]]" and "[[Film/JurassicPark Prehistoric Pokémon Park]]", respectively) also have Q&A sessions at the beginning.
72* ''Blog/ThePredespairKids'' "celebrated" reaching its 1000th page by truly taking after its [[Franchise/{{Danganronpa}} source material]] with a true WhamEpisode: [[spoiler: Hiyoko]] is found murdered in the gym and an investigation takes place involving all the characters, both canon and [[OriginalCharacter original]].
73* ''Webcomic/SonicTheComicOnline'':
74** Issue 261 celebrated the 20th anniversary of the original ''ComicBook/SonicTheComic'' by having an action packed issue featuring numerous cameos from older and oneshot characters.
75** One of the original ''Sonic the Comic'' writers, Nigel Kitching, wrote a special issue for ''Sonic the Comic Online'' in order to celebrate the 25th anniversary. It's set in an unmentioned amount of years in the future and has the Freedom Fighters on one last fight against Super Sonic, Dr. Robotnik, and Grimer.
76[[/folder]]
77
78[[folder:Literature]]
79* The ''Literature/MrMen'' and ''[[DistaffCounterpart Little Miss]]'' books celebrated their 35th (''Mr. Men'') and 25th (''Little Miss'') anniversaries with [[ExactlyWhatItSaysOnTheTin "Mr. Birthday" and "Little Miss Birthday"]].
80* In honor of [[WesternAnimation/NoddysToylandAdventures Noddy's 60th Anniversary]] in 2009, [[https://images-na.ssl-images-amazon.com/images/I/51u2dUWbxUL._SX258_BO1,204,203,200_.jpg a new book was written]] called ''Noddy and the Farmyard Muddle'' written by Creator/{{Enid Blyton}}'s granddaughter, Sophie Smallwood. The book was also illustrated by Robert Tyndall, [[https://editorial01.shutterstock.com/wm-preview-1500/938666d/f2f111af/a-new-noddy-story-to-be-published-to-coincide-with-the-60th-anniversary-of-noddys-first-appearance-in-1949-at-the-animation-gallery-county-hall-london-britain-shutterstock-editorial-938666d.jpg who has drawn the characters in the Noddy books since 1953]]. That same year, a second CGI series starring Noddy called "Noddy In Toyland" also premiered in the UK in April 2009. France honored the character's 60th anniversary by creating a musical called ''Oui-Oui Et Le Cadeau Surprise'' (''Noddy And The Surprise Gift'') which involves [[https://www.youtube.com/watch?v=FcnzQXgo7k4 Mr. Plod, Mr. Wobblyman, Tessie, Dinah, and Whizz]] planning a [[BirthdayEpisode surprise birthday party for Noddy.]] By the end of the show, Noddy even invites Sly and Gobbo to his birthday celebration. In addition to the series' 60th Anniversary, a biopic about Enid Blyton, titled ''Film/{{Enid}}'', was aired on BBC Four, briefly touching on the creation of the series.
81* The 1111th and the 2222nd volume of the long-running weekly German SciFi series ''Literature/PerryRhodan'' were both quite nice in-character and in-continuity parodies of the series, both written by Horst Hoffmann, who went on to announce his retiring from being a regular author.
82* ''Literature/SweetValleyHigh'' celebrated its 100th book (well, actually its 97th through 100th) with its first StoryArc, a GenreShift to horror. It worked surprisingly well, leading to more story arcs and more fantastical story elements in the future.
83* ''Literature/ReturnToFiretopMountain'' celebrated both the 50th installment in the ''Literature/FightingFantasy'' series and the 10th anniversary of the publishing of the first book. It took the reader back to the same dungeon of the original ''Literature/TheWarlockOfFiretopMountain'' to defeat a resurrected Zagor.
84* Pan Books commissioned ''Literature/AndAnotherThing'' for the 30th anniversary of the publication of ''Literature/TheHitchhikersGuideToTheGalaxy1''.
85* The tenth anniversary of ''Literature/WarriorCats'' in 2013 marks the release date of the prequel series ''Literature/WarriorCatsDawnOfTheClans''.
86* ''Literature/CharlieAndTheChocolateFactory'''s 50th anniversary in 2014 ("50 Whipple-Scrumptious Years") was marked with a variety of events and offerings. This milestone celebration specifically kicked off on January 31st, since that's the day Charlie finds his Golden Ticket in the novel.
87** Penguin Books added the novel to their adult-oriented Penguin Modern Classics line -- a ploy that went awry due to its unique, controversial cover featuring a girl with creepy makeup and dress.
88** The novel had several kid-friendlier anniversary editions published too, including deluxe reissues of both the Joseph Schindelman ''and'' Quentin Blake-illustrated editions -- the latter in full-color for the first time.
89** The retrospective book ''Inside Charlie's Chocolate Factory'' was published.
90** There were contests in the U.S. and U.K., and the annual Puffin Virtually Live school webcast that marks Creator/RoaldDahl's birthday was centered on the book.
91** While the [[Theatre/CharlieAndTheChocolateFactory 2013 West End stage musical adaptation of the novel]] was not specifically launched to tie in to the anniversary, it was incorporated into several of the U.K.-based events, such as the aforementioned webcast and an Easter-season window display at the Piccadilly Circus Waterstone's bookstore that recreated its sets and characters in miniature via decorated chocolate biscuits. "Celebrate Fifty Years of [[BootstrappedTheme Pure Imagination]]" was a tagline for the show for a while too.
92* ''Literature/JamesBond'' novel ''Literature/DevilMayCare'' was released on the hundreth anniversary of the birth of Creator/IanFleming, the creator of the character.
93* ''Life and Death'', a GenderFlip[=ped=] retelling of ''[[Literature/Twilight2005 Twilight]]'', was released in celebration of the 10th anniversary of ''Twilight''.
94* ''Literature/TheFurtherAdventuresOfBatman'': The first anthology was written to celebrate the fiftieth anniversary of the Batman multimedia franchise.
95* The ''Literature/WingsOfFire'' series never had any ''official'' milestone commemoration(s) in all technicality, though Cole S. Sieben's all-encompassing series introduction [[https://cssieben.substack.com/p/mastery-of-morality-and-wings-of-fire "Mastery of Morality and Wings of Fire"]] was [[MeaningfulReleaseDate purposefully released]] on the books' tenth anniversary.
96* ''Literature/TheHungerGames'': The Quarter Quells are an InUniverse example. Every twenty-five years, a one-off twist is introduced to remind the people living in the districts of why the titular Games exist and of the Capitol's continuing power over them, with the nature of the Quell being announced by Panem's president months in advance. A large number of these Quells spanning hundreds of years were planned, but only three actually took place and only the first two were played out to the end. The third Quarter Quell takes place during the events of ''Catching Fire'', but the Games are cut short with six tributes still alive.
97[[/folder]]
98
99[[folder:Magazines]]
100* The 40th anniversary issue of ''People'' magazine had Music/TaylorSwift on their cover, making an [[https://www.hawtcelebs.com/wp-content/uploads/2014/10/taylor-swift-on-the-cover-of-people-magazine-october-2014-issue_1.jpg identical pose]] to Creator/MiaFarrow [[http://img2.timeinc.net/people/i/2014/specials/40th-anniversary/timeline/mia-farrow-435.jpg on the magazine's first cover]].
101[[/folder]]
102
103[[folder:Music]]
104* Many artists celebrate anniversaries of their best known albums by rereleasing them in remastered or [[LimitedSpecialCollectorsUltimateEdition upgraded]] versions. Whole catalogues can get this treatment at times (such as Music/JohnLennon's catalog in 2010, coinciding with what would've been his 70th birthday).
105* Music/TheBeatles released their GreatestHitsAlbum ''1'', with all their number one hits, on the 30th anniversary of their break-up in 2000.
106* Music/{{The Rolling Stones|Band}}:
107** They celebrated 40 years with ''Forty Licks'', a GreatestHitsAlbum that as the title indicates had 40 tracks (4 of them new) in 2002. 10 years later, in 2012, they did the same with the 50-track (two of them new, and one of the old ones being from ''Forty Licks'') ''GRRR!''. In July 2023, to mark Music/MickJagger's 80th birthday, ''Forty Licks'' got re-released on vinyl and digital.
108** In October 2021, to mark ''Music/TattooYou'''s 40th anniversary, it was re-released with 9 unreleased tracks and a live album recorded at Wembley Stadium in 1982. It also served as a tribute to drummer Charlie Watts, who passed away at age 80 on August 24, 2021, exactly 40 years after the album was first released.
109* Music/PearlJam celebrated 20 years of debut album ''Music/{{Ten|PearlJamAlbum}}'' with the documentary ''Pearl Jam Twenty'' and re-releases with extra discs.
110* Music/{{Blur}} released a box set containing all of their albums for the 21st anniversary of their first one.
111* Music/MichaelJackson examples:
112** He threw two all-star tribute concerts to ''himself'' at Madison Square Garden in September 2001 to mark the 30th anniversary of his first release as a solo artist, though these and remastered/mostly expanded reissue of his first four albums for Epic Records was more to promote his forthcoming ''Music/{{Invincible}}'' than anything.
113** In 2007, ''Thriller 25'' was a second expanded reissue of [[Music/{{Thriller}} that particular album]] that added new versions of several tracks, pairing Jackson up with contemporary hitmakers. In 2022, ''Thriller 40'' was announced to celebrate the album's forthcoming 40th anniversary in 2023.
114** In 2012, ''Music/{{Bad}} 25'' was a second expanded reissue of ''Bad'' that had a tie-in documentary helmed by Creator/SpikeLee.
115** Averted with ''Music/{{Dangerous|Album}}''; a 25th anniversary reissue was announced for 2016, to feature new songs, demos and remixes, but never materialized.
116* Music/DavidBowie examples:
117** In 2002, the 35th anniversary of his debut album marked the release of GreatestHitsAlbum ''Best of Bowie'' -- even if it only had songs [[SequelDisplacement starting with the second album]], namely the TitleTrack of ''Music/SpaceOddity''.
118** He marked his ''66th'' birthday in 2013 with the surprise announcement of his first studio album in ten years, ''Music/TheNextDay'', via the relaunch of his official website and the release of its first single/video, "Where Are We Now?"
119** In 2014, the 3-disc GreatestHitsAlbum ''Nothing Has Changed'' marked 50 years of Bowie recordings, featuring the new single "Sue (Or in a Season of Crime)" to bookend his first single, 1964's "Liza Jane". This is the first and only Bowie-curated compilation to include pre-''Music/SpaceOddity'' songs.
120** In 2016, he marked his 69th birthday with the release of ''Music/BlackstarAlbum'', designed as his SwanSong following his diagnosis with liver cancer, which would kill him just two days after the album's release.
121* Anniversaries of Music/JeanMichelJarre's ''Music/{{Oxygene}}'':
122** He belatedly celebrated the 10th anniversary with an eponymous BoxedSet in 1987, collecting every album of his since ''Oxygène'' (barring ''Music for Supermarkets'', which remains confined to a sole, auctioned-off LP copy and home tapings from a radio broadcast).
123** He celebrated the 20th anniversary by releasing the back-to-the-roots-but-still-kind-of-90s sequel album ''Oxygène 7-13'' — about half a year late, but still. When asked back then which ''Music/{{Oxygene}}'' is his favorite, he jokingly replied it's [[LampshadeHanging the third one he's going to release in another 20 years]]. After the new album came Jarre's first indoors tour, the ''Oxygène Arena Tour'', during which neither of the two ''Oxygènes'' were played in full.
124** Jarre ''[[HilariousInHindsight did]]'' release ''Oxygène 3'' precisely 40 years after the release of ''Music/{{Oxygene}}''.
125** He also celebrated the 30th anniversary. First he largely re-recorded the original ''Music/{{Oxygene}}'' at his studio. Then he took his three live co-keyboardists and his entire rig of about five dozen mostly vintage synths to the Belgian Alfacam Studios to re-record ''Oxygène'' yet again, this time not overdubbed but played live by these four musicians while being filmed and expanded by three ''Variations''. The outcome was titled ''Oxygène – Live in Your Living Room''. Next, he took ''this'' concept onto a live stage at Théâtre Marigny where he played ten concerts in a row. And then an actual tour followed with still the same concept. By then, Jarre was one and a half years late, and the last concerts of that tour were more than two years late, but the French consider being in time bad manners. All in all, Jarre celebrated the 30th anniversary of ''Oxygène'' by remaking the entire album 47 times over.
126* Some more Music/JeanMichelJarre anniversary celebrations:
127** ''Rendez-vous Houston'' celebrated both the state of Texas' and the city of Houston's 150th anniversary and the 25th anniversary of NASA. Jarre even joked about returning another 150 years later.
128** The mini-gig ''Destination Trocadéro'' honored the Eiffel Tower's 100th birthday.
129** ''Paris La Défense'', breaking Jarre's ''Rendez-vous Houston'' audience record, was exactly one year late for celebrating the 200th anniversary of the French Revolution and the 10th anniversary of Jarre's already record-breaking debut concert. That said, he had plans for a big Paris concert in 1989 in order to also celebrate the Eiffel Tower's birthday, but these had to be nixed. Instead, he played the small ''Destination Trocadéro'' and delayed the big show by one year.
130** At Jarre's ''Europe in Concert'' gig in Brussels, the fans celebrated his 45th birthday. A concert bootleg actually contains "Happy Birthday" sung by the audience.
131** ''Oxygen In Moscow'', breaking Jarre's ''Paris La Défense'' audience record, was part of the city of Moscow's 850th anniversary celebrations.
132* Music/GaMetal[='s=] fiftieth song was a medley of remade previous songs. The hundredth [=GaMetal=] song was also a medley, this time of gaming's most iconic tunes.
133* Music/{{Garbage}}'s 20th anniversary in 2015 had both a special edition of their debut and a tour where they performed said album on its entirety, including the B-sides.
134* Music/{{Nightwish|Band}} celebrated its 20th anniversary a little belatedly in 2018 with the release of ''Decades'', a compilation of remastered favorite tracks from 2015's "The Greatest Show on Earth" all the way back to their original demo "Nightwish" in 1996.
135* ''MAP OF THE SOUL: 7'' was released on Music/{{BTS}}' 7th year as a group. Due to 7 also being their number of members (as well as the existence of the RuleOfSeven and LuckySeven tropes), this album is a reflection and celebration of BTS' journey, with many {{Call Back}}s as well as lyrics ruminating on the nature of fame and their growth as artists and as people.
136* On February 10, 2021, Music/RebeccaBlack released a poppier, remixed version of "Music/{{Friday}}" exactly ten years after its original release date.
137* On October 29, 2021, to mark the 30th anniversary of Music/OzzyOsbourne's "Hellraiser" single, a special mashup version was produced, combining Ozzy's vocals with those by Music/{{Motorhead}} frontman and co-writer Lemmy Kilmister ([[PosthumousCollaboration who'd passed away in 2015]]) off Motorhead's own rendition into a duet.
138* Music/{{Sabaton}} celebrated their twentieth anniversary, and Wacken Open Air's thirtieth anniversary, with a special two-hour reunion set in 2019 with four of their former members (three of whom had left to form Music/{{Civil War|Band}} in 2012) rejoining the band on the festival's second main stage.
139[[/folder]]
140
141[[folder:Pinball]]
142* ''Pinball/Batman66'' was marketed as both a celebration of [[Series/Batman1966 the original TV series]]' 50th anniversary and Creator/{{Stern}} Pinball's 30th year in business.
143* ''Pinball/ElvirasHouseOfHorrors'': The 40th Anniversary Edition, revealed in late 2021, was made to commemorate the time since ''Series/ElvirasMovieMacabre'' premiered in 1981.
144* [[https://www.ipdb.org/showpic.pl?id=4443&picno=3735 The flyer]] for ''Pinball/GodzillaSega'' touts it as a celebration of "45 Years of ''Franchise/{{Godzilla}}'' History" (though it was released in 1998, at which point [[Film/Godzilla1954 the original film]] was only 44 years old).
145* The cornerstone models of ''Pinball/JamesBond007Stern'' were released in 2022, 60 years after ''Film/DrNo'' (the first ''Film/JamesBond'' movie). The 60th Anniversary Limited Edition, released a few months later in early 2023, commemorates the occasion by featuring elements from every film in the series.
146[[/folder]]
147
148[[folder:Pro Wrestling]]
149* The "Fifth Year Festival'' Wrestling/RingOfHonor held in its place of its usual anniversary show was a six day tour starting in NYC, New York and ending in Liverpool.
150* ''Wrestling/WWERaw'': Celebrated its milestone anniversaries -- 10th (2003), 17th (2010), 20th (2013), 25th (2018), and 30th (2023); as well as its 900th, 1,000th, 1,100th and 1,200th episodes. Usually, these shows involved special title matches and other special main events with unique stipulations and -- more notably -- the return of top superstars from the past.
151* To celebrate the 25th anniversary of Wrestling/MikeQuackenbush's in-ring debut, he has released matches that were personally special to him to Wrestling/{{CHIKARA}}'s Platform/YouTube channel that had never been released in that medium before.
152[[/folder]]
153
154[[folder:Puppet Shows]]
155* ''Series/SesameStreet'':
156** The series had anniversary specials during years 10, 20, 25, 30, and 35.
157** The 40th anniversary had to settle on-air with "40" (the highest number in the show's curriculum) [[note]]based on counting by ones[[/note]] sponsoring the season premiere. That season was also loaded with ContinuityNod {{Easter Egg}}s and cameos (both on-set and in photographs) of staff members and retired Muppet characters (including Kermit the Frog, who was retired from ''Sesame Street'' since the Disney buyout of Franchise/{{the Muppets}}, and X Ray, a generic Muppet specifically created for the ''Series/{{Scrubs}}'' episode "My ABC's", which was an ImagineSpot-induced FakeCrossover with ''Sesame Street''). Season 40 also premiered 40 years to the day that ''Sesame'' premiered on November 10, 1969.
158** In 1977, the 1000th episode was commemorated with a primetime special on PBS entitled ''Sesame Street At Night?''[[note]]Not a typo - the title is based on a critic's remark that the show was "too good for kids"[[/note]], hosted by Gene Shalit.
159** For the show's 50th anniversary in 2019, Sesame Workshop went all out with the festivities, including new merchandise, reissues of older Little Golden Book tie-in titles, a social media campaign called [[EngineeredHashtag #ThisIsMyStreet]], a ten-city road trip, and two anniversary specials. The DVD compilation ''50 Years and Counting'' included many older segments (and characters) plus nine fan favorite and/or landmark "street stories" in their entirety. In addition, the show's creators received a Kennedy Center Honor for the show's cultural and educational impact that December.
160* ''Series/BarneyAndFriends'' had Old King Cole come over for a visit in episode 100. Barney is reunited with some alumni to celebrate 10 years of the Barney franchise, and gets a memory book after 20 years.
161* Played straight with the 100th episode of ''WesternAnimation/BluesClues'', where Joe and Blue did not search for clues, instead choosing to do a ClipShow where the entire cast reminisced about their past adventures. Steve Burns [[TheBusCameBack even made an unexpected guest appearance visiting from "college"]] to disprove the countless rumors going around at the time as to why he left the show.
162* ''Franchise/TheMuppets: A Celebration of 30 Years'', marking 30 years since Creator/JimHenson's first TV puppet show ''Sam and Friends'', was an hour-long special set at a testimonial dinner for Kermit (who had first appeared way back then), a MassiveMultiplayerCrossover in the style of the following year's ''Film/AMuppetFamilyChristmas''.
163* ''Series/TheNoddyShop'' was brought over to the United Kingdom to celebrate the 50th anniversary of the ''[[WesternAnimation/NoddysToylandAdventures Noddy]]'' franchise.
164* Subverted in ''Series/TheBookOfPooh'' when the storybook the series is set in reaches its 100th page. Pooh and the rest want to celebrate that, but by the time they were ready, the book has advanced to page 110.
165[[/folder]]
166
167[[folder:Radio]]
168* The 30th anniversary episode of ''Radio/ImSorryIHaventAClue'' came from the Playhouse Theatre (where the first show was recorded) and included an introduction by the original producer, David Hatch, and the Mornington Crescent Championships, with commentary by Raymond Baxter.
169* The 100th episode of ''Radio/TheInfiniteMonkeyCage'' was an hour long special with the return of many former guests (they usually only have two). There was also a 40 minute video version on [=iPlayer=], which included the return of the Robin, Brian and Eric Idle puppets from the 2014 video trailers.
170* The 100th episode of ''Podcast/WereYouRaisedByWolves'' is a highlight of great stories and segments from the previous 99 episodes.
171[[/folder]]
172
173[[folder:Sports]]
174* UsefulNotes/MajorLeagueBaseball celebrated the game's centennial in 1939, by having all sixteen teams wear a commemorative patch, one of the first such anniversary patches in sports. This was all based on the widespread lie that Abner Doubleday had invented the game in Cooperstown, NY in 1839. The National Baseball Hall of Fame and Museum had been established in Cooperstown in 1936.
175** MLB would celebrate a more legitimate anniversary in 1969, marking the centennial anniversary of the first acknowledged all-professional baseball team, the Cincinnati Red Stockings (a separate franchise more closely linked with the Atlanta Braves than the modern Reds).[[note]]To get into specifics, the founder of the team along with three other players organized a team named the [[SuspiciouslySimilarSubstitute Boston Red Stockings]] in 1871, as part of newly founded National Association of Base Ball Players. That team eventually moved to the National League and became known as the Boston Braves; the Braves moved the Milwaukee in 1953, then moved to Atlanta in 1966.[[/note]] MLB celebrated with a new patch featuring a brand-new logo that would be adapted to represent MLB going forward. They also celebrated the 125th anniversary in 1994, but the season-ending players' strike caused that to end on a sour note.
176** The National League celebrated its 100th anniversary in 1976 by having its participants in the All-Star Game wear special NL pillbox-style hats. In addition, several NL teams wore their own pillbox hats as alternate caps during the season, although the Pittsburgh Pirates opted to go with the pillbox full-time for several seasons.
177** MLB celebrated the 50th anniversary of Jackie Robinson's debut with the Brooklyn Dodgers, breaking baseball's color barrier, by retiring his uniform number, 42, across all of baseball on April 15, 1997. Players wearing the number at the time were permitted to continue to wear it until the end of their careers. For the 60th anniversary in 2007 onward, MLB has held Jackie Robinson Day every year on April 15th, where every player takes the field wearing number 42 for the day (though the event does get pushed back on account of rain for some teams).
178** MLB celebrated the 75th anniversary of Lou Gehrig's farewell speech on July 4, 2014 by raising money for ALS research from sales of the patch worn by every team that day.
179* The UsefulNotes/NationalFootballLeague celebrated its 50th season in 1969. Every NFL team wore a modified NFL logo patch that featured the number 50 in place of the football and stars on the blue upper portion of the shield. The American Football League also celebrated its tenth and final season with an anniversary patch of their own, as the two leagues would complete their merger in 1970.
180** The NFL went on to celebrate its 75th season in 1994; in addition to a league-wide anniversary patch, most teams wore throwback uniforms for at least one game. (Cleveland and Indianapolis opted not to wear throwbacks as their current uniforms were their most iconic, while Tampa Bay didn't have any older design to throw back to at the time).
181** The NFL celebrated the 50th anniversary of the AFL in 2009 (the 50th season of the eight founding AFL franchises), and those teams wore AFL-era throwbacks. This caused an interesting situation with the New York Jets and Tennessee Titans; the Jets threw back to their earliest seasons as the New York Titans, facing the Titans who threw back to their days as the Houston Oilers.
182** The NFL celebrated the 50th UsefulNotes/SuperBowl with gold NFL logos and the 50-yard markers on every field[[note]]except Oakland, because of conflicts with UsefulNotes/MajorLeagueBaseball[[/note]] being painted in gold. They also referred to Super Bowl 50 with Arabic numbers instead of Roman, as "L" (the Roman numeral for 50) is often used to represent losers, and wouldn't look good for a logo for the sport's biggest championship.
183** The NFL celebrated its 100th season in 2019, kicking off the season with the Chicago Bears (the only team to play in every season of league play) hosting the Green Bay Packers in the league's longest-running rivalry. Additionally, the league scheduled a weekly game honoring landmark moments in NFL history ([[https://en.wikipedia.org/wiki/2019_NFL_season#NFL_centennial_promotions detailed here]]). The celebrations didn't end with the 2019 season; for the league's actual 100th anniversary in 2020, the Pro Football Hall of Fame announced a 15-member "Centennial Slate" of Hall inductees that will enter the Hall in 2020 alongside the normal four- to eight-member induction class.
184* UsefulNotes/NationalHockeyLeague
185** The League celebrated its 75th season in 1991-92 with both a league-wide patch and by having the Original Six teams[[note]]Boston Bruins, Chicago Blackhawks, Detroit Red Wings, Montreal Canadiens, New York Rangers, Toronto Maple Leafs[[/note]] wear throwback uniform designs for select games throughout the season. In addition, the league switched its home and road uniform colors after the All-Star Game, having teams wear their white uniforms on the road, reverting to white at home in the Stanley Cup Playoffs. The five surviving expansion teams from 1967[[note]]Los Angeles Kings, Minnesota North Stars, Philadelphia Flyers, Pittsburgh Penguins, and St. Louis Blues; the California Golden Seals/Cleveland Barons franchise had folded in 1978 when the organization was merged with the North Stars[[/note]] also celebrated their 25th seasons. This was followed up with the celebration of the Stanley Cup Centennial in the 1992-93 season. Once again, every team had an anniversary patch, and a modified championship patch for the Stanley Cup Finals that celebrated the centennial as well.
186** The NHL celebrated its 100th anniversary in 2017 - from January 1st to December 31st, straddling two seasons - by having teams wear the centennial anniversary patch on their right sleeves. This included a pair of outdoor games specifically to celebrate the anniversary - the Centennial Classic on January 1st, and the NHL 100 Classic on December 16th.
187* Historically, if teams celebrated anniversaries, they only focused on the major ones, such as 25th, 50th, 75th, or 100th. However, in modern times, it has become increasingly common for teams to celebrate their 10th, and even 5th, anniversaries with patches and the like.
188** The Montreal Canadiens held one of the more notable anniversary celebrations for their centennial. They began their celebration in the 2008-09 season and carried it into the start of the following season, up to their actual 100th anniversary on December 4th, 2009. Of note is that they had two logos for the anniversary - one that simply featured the number 100 and the years 1909 and 2009, and another that read "100 Seasons/Saisons". The only problem with that is that they wore the 100 Seasons patch only during the 2008-09 season - which, thanks to the 2004-05 season being cancelled in its entirety due to a labor dispute, was the Canadiens' 99th season of play. However, the case could be made that it was still their 100th season of business operations.
189** The 2004-05 lockout also screwed up several team anniversary celebrations. Some teams have continued to celebrate their original anniversaries after the lockout, while others have pushed them back a season. For example, the Ottawa Senators celebrated their 25th anniversary during the 2016-17 season, while the Tampa Bay Lightning celebrated their 25th during the 2017-18 season, even though both teams were founded the same year. Similarly, the Stars celebrated the 20th anniversary of their relocation to Dallas in 1993 during the 2012-13 season, while the Anaheim Ducks and Florida Panthers, both founded in 1993, celebrated their 20th anniversaries the following season. Making matters worse are the New York Rangers, who celebrated their 85th(!) anniversary during the 2010-11 season (what would've been their 85th season of play if not for the lockout), but then held their 90th anniversary ''six'' seasons later, during the 2016-17 season.
190* The UsefulNotes/NationalBasketballAssociation celebrated its 25th anniversary in 1970-71 and its 35th anniversary in 1980-81, but celebrated its 50th anniversary in 1996-97, the league's 51st season[[note]]though its first three seasons were as the Basketball Association of America, before merging with the National Basketball League in 1949[[/note]]. For the 50th, the NBA logo on the uniforms was gold, and several teams wore throwback uniforms for select games.
191* The most confusing slate of team anniversaries possibly belongs to MLB's Houston Astros. Their first season was in 1962 as the Houston Colt .45s, but legal action from Colt's Manufacturing Company forced them to change their name to the Astros in 1965. The Astros had celebrated their 25th season in 1986, their 35th season in 1996, their 40th season in 2001, and their 45th season in 2006. But then they decided to celebrate the 45th ''anniversary'' of becoming the Astros in 2010. This was followed by their 50th anniversary celebration in 2012 (their 51st ''season''), and then the 50th anniversary of becoming the Astros in 2015. Though Astros' rename anniversaries also double as the anniversary of their previous home, the Astrodome as seen on the 50th Astros patch.
192* In 2016, the South American confederation of UsefulNotes/AssociationFootball (CONMEBOL) celebrated their 100 years of existence with the Copa América Centenario (Centennial America Cup), celebrated in the United States and played by all South American national teams as well as the best teams from the Central American, North American and Caribbean side. It was won by Chile.
193* UsefulNotes/FormulaOne celebrated it's 70th annivesary in 2020 with a TitleSequence filled with highlights from the sport's history, and (primarly due to the COVID-19 pandemic), held a one-off race at Silverstone called the 70th Anniversary Grand Prix, a fitting name given that the race track hosted the first ever F1 World Championship race in 1950.
194[[/folder]]
195
196[[folder:Tabletop Games]]
197* ''Franchise/TheWorldOfDarkness'': For the 20th anniversaries of ''TabletopGame/VampireTheMasquerade'', ''TabletopGame/WerewolfTheApocalypse'', and ''TabletopGame/MageTheAscension'', Creator/WhiteWolf released 20th anniversary editions of the games, compiling the splats and powers released over each game's history into a single corebook, though W20 and M20, thanks to ScheduleSlip, came out after their anniversaries.
198* ''TabletopGame/MagicTheGathering'':
199** The 20th anniversary saw the release of ''From the Vault: Twenty'', a ''From the Vault'' collector's set with 20 cards that had featured in tournament-winning decks (one for each year).
200** For the 25th anniversary, Wizards released both ''Masters 25'', a reprint set with at least one card from every expansion to date; and the ''Dominaria'' expansion, the first return to the game's original setting in over ten years.
201** The 30th anniversary included a year-long (four-expansion) storyline that started on Dominaria and ended with an invasion of the entire ''Magic'' multiverse, as well as a ''Magic 30'' convention. It also involved the release of possibly the single most controversial product in the game's history: a 30th anniversary booster box with four packs containing (tournament-illegal) reprints of the game's most famous cards, for ''$999''.
202* ''TabletopGame/YuGiOh'':
203** After 10,000 cards were created in Japan, the card [[https://yugioh.fandom.com/wiki/Ten_Thousand_Dragon Ten Thousand Dragon]] was released.
204** The 25th anniversary of the franchise was commemorated by introducing the Quarter Century Secret Rare rarity to booster sets released in 2023. The first six booster packs in the game's TCG print, as well as the first Legendary Collection box, were also re-released for the TCG with the addition of a 25th Anniversary seal on the packaging and the new card rarity.
205** Also for the 25th anniversary, a video called [[https://www.youtube.com/watch?v=LSs4mBRy7nk Yu-Gi-Oh! Card Game the Chronicles]] was released, a series of clips set in the world of the cards.
206[[/folder]]
207
208[[folder:Theatre]]
209* ''Theatre/AChorusLine'':
210** When the original production surpassed the record for longest-running Broadway musical on September 29, 1983, a whopping 332 dancers from past, national, and international casts, including the iconic original cast, performed the show's finale "One".
211** For the show's 40th anniversary in 2015, the original cast of ''Theatre/{{Hamilton}}'', then Off Broadway at the Public Theater where ''A Chorus Line'' premiered, struck the iconic pose and performed "What I Did For Love" with the original cast.
212* Creator/CirqueDuSoleil milestone celebrations:
213** ''Theatre/{{Alegria}}'' launched in 1994 as the company's 10th anniversary show; the year also saw the retrospective documentary ''A Baroque Odyssey''.
214** The 20th anniversary of the company was marked with, among other things, the retrospective book ''20 Years Under the Sun'' and the ''Midnight Sun'' concert in Montreal. The latter doubled as a 25th anniversary marker for the city's international jazz festival, which the concert was held at.
215** The 25th anniversary ("The Dream Continues") included a [[http://www.zimbio.com/pictures/_ogLfx9C17Y/Cirque%20Du%20Soleil%20Holds%2025th%20Anniversary%20Guinness/42DW1agxY2N stilt-walking event centered on Las Vegas]], a two-disc GreatestHitsAlbum featuring songs from almost every show produced up to that point, and a book on the company's costumes over the years.
216** The 30th anniversary was marked with the two-plus week run of a choral concert of Cirque music performed in Montreal's Saint-Jean-Baptiste Church and the photo book ''Backstage Cirque du Soleil''.
217** Individual shows often mark their 1st, 5th, [[LongRunners 10th, etc.]] anniversaries with a curtain call celebration during the performances that fall on the date in question, and perhaps a small gift for audience members that night (a 15th anniversary pin at ''"O"'', for instance). In Las Vegas, ads that year will include a special logo noting the milestone. Celebrations have also been held to mark a show reaching 100, 500, 1000, 1500, etc. performances.
218** There was also a special celebration for a single performer in 2012. Longtime circus performer and ''Theatre/{{Mystere}}'' principal clown Brian Dewhurst's 80th birthday fell on a performance night, so a [[http://www.huffingtonpost.com/2012/06/01/brian-dewhurst-cirque-du-_n_1562498.html giant surprise party]] (yes, ''SurpriseParty'') was arranged for him, which played out over and after the two performances.
219* The 20th anniversary of the London production of Creator/AndrewLloydWebber's ''Theatre/ThePhantomOfTheOpera'' was marked with the [=BBC=] documentary special ''Behind the Mask''. The ''25th'' anniversary was marked with a mega-staging of the entire show at Royal Albert Hall (140 cast members as opposed to the usual 40, etc.), followed by a "grand finale" featuring appearances by most of the original London cast and a performance by Sarah Brightman (the original Christine); this was filmed and released on video.
220* The tenth anniversary of ''Theatre/LesMiserables'' was celebrated with a concert at the Royal Albert Hall, and the 25th with a staging in the O2 arena, with TheReveal that they are making a [[Film/LesMiserables2012 movie musical adaptation]].
221* ''Theatre/MissSaigon'' received a West End revival in 2014 to mark its 25th anniversary, and even got a new song for the occasion ("Maybe"). There was also a gala performance featuring both original and revival cast members, and tickets were dialed back to 1989 prices for that particular show.
222* ''Theatre/TheWiz'' had its 40th anniversary honored in 2015 with a live performance on Creator/{{NBC}}, the digital release of a long-shelved movie tie-in soundtrack titled ''Diana Ross Sings Songs From Film/TheWiz'', and the announcement of a Broadway revival for the following year, though that never actually materialized.
223[[/folder]]
224
225[[folder:Theme Parks]]
226* Ride/DisneyThemeParks have interesting anniversary promotions for whenever a park reaches the 10th, 25th, etc. anniversary of its opening day, usually debuting new attractions in the parks, new/updated shows and parades, and usually a large gimmick. Examples:
227** For its 25th year, Disney World's Cinderella Castle was transformed [[http://waltdatedworld.com/id75.htm into a gigantic pink cake.]]
228** Mickey Mouse's 60th birthday was acknowledged at Florida's Magic Kingdom with a whole themed "land", Mickey's Birthdayland, in 1988. The park kept it and tweaked its theme over the years -- first it became Mickey's Starland, then Mickey's Toontown Fair -- until it was torn down in TheNewTens to make way for the Fantasyland expansion.
229** A notable example is the "100 Years of Magic Celebration" (2001-2003) which celebrated simultaneously Creator/WaltDisney's 100th Birthday and Walt Disney World's 40th Anniversary. The Walt Disney Company decided to honor Walt's Birthday at almost every single Disney Park (notably Tokyo Disneyland and Walt Disney World) by gaining special offerings. A year prior, Tokyo Disneyland debuted a new daytime parade called "Disney on Parade - 100 Years of Magic" which honored Disney's early days and up to the Renaissance Era. [[https://www.youtube.com/watch?v=e-jPvAyVBHA Walt Disney World Resort was the centerpiece of the celebration]] with Disney Hollywood Studios (formerly "MGM Studios") gaining a giant Sorcerer Mickey Hat which sold pins. Epcot renamed "Tapestry of Nations" to "Tapestry of Dreams" to make it relevant to Walt Disney and Dreams, and the Magic Kingdom created the [[https://www.youtube.com/watch?v=2WIE1lRjpzc&t=127s "Share A Dream Come True Parade"]] which celebrated Walt Disney's accomplishments on film and animation.
230** The 50th Anniversary celebration of the original Disneyland in California was particularly elaborate. The celebration included covering Sleeping Beauty Castle with tons of gold decorations, painting at least one vehicle on every single [[LongRunners still operating]] attraction that originally opened in 1955 gold, fixing up various attractions that had noticeably deteriorated during [[AudienceAlienatingEra the Paul Pressler era]], opening [[Franchise/ToyStory Buzz Lightyear]]'s Astro Blasters, reopening Ride/SpaceMountain after a 2-year long overhaul, announcing the construction of the WesternAnimation/FindingNemo Submarine Voyage, and, as usual for a Disney anniversary celebration, hosting a new parade and fireworks show [[LongRunners (the latter still runs to this day on a seasonal basis)]]. If that wasn't enough, various celebrations were also held at every Disney resort around the world at the time with new attractions and shows being added to the parks in Florida, Tokyo and Paris and even including the opening of the then newest park, Hong Kong Disneyland, as part of the celebration.
231** Compared to Disneyland and Walt Disney World, Tokyo Disneyland really goes all out on their anniversaries. [[https://www.youtube.com/watch?v=yDMVvJRqMX0 Tokyo Disneyland's 30th Anniversary was known as "The Happiness Year"]] which had their castle decorated in colorful Mickey balloons ([[https://www.youtube.com/watch?v=u4yiY9SjJrA which gained a special night show]]), [[https://www.youtube.com/watch?v=uzCEhWPVAGc a parade sharing the anniversary's name]], and a special morning show at Tokyo Disneysea called [[https://www.youtube.com/watch?v=VqETXYh9Duk&t=267s "Happiness Greeting On The Sea"]].
232** Planned but unfortunately averted for the 65th anniversary of Disneyland in 2020 due to the UsefulNotes/CoronavirusPandemic shutting down the entire complex in March; the park didn't reopen until April 2021, long after the relevant date passed.
233** When Walt Disney World turned 50 on October 1, 2021, it was immediately marked with the opening of Remy's Ratatouille Adventure at Epcot after it was delayed for over a year due to the UsefulNotes/COVID19Pandemic, which delayed most of the other planned projects for the celebration until well after it ended. There were also new fireworks and/or light shows at all four parks. Guardians of the Galaxy Cosmic Rewind at Epcot opened for Summer 2022. Some places outside the parks also celebrated the 50th anniversary of Disney World, including UsefulNotes/McDonalds (with a special Happy Meal promotion), Creator/{{ABC}} (with a 20/20 special airing on the day of the anniversary) and Sirius XM's Disney Hits radio station (with its' Extra Magic Hours block playing songs from Disney World for the week of October 4, 2021, rather than on the actual week of the anniversary).
234** The Main Street Electrical Parade received some updates during its 50th anniversary in 2022, such as replacing the "To Honor America" float with an Ride/ItsASmallWorld-inspired tableau of characters ranging from [[WesternAnimation/{{Pinocchio}} The Blue Fairy]] (who led every performance from 1972-2009) to [[WesternAnimation/{{Encanto}} Mirabel and Antonio Madrigal]].
235** In 2023, Disneyland Resort celebrated the 100th anniversary of The Walt Disney Company by unveiling an updated Toontown, containing an expanded clone of Ride/MickeyAndMinniesRunawayRailway. It also premiered new nighttime shows for each park: At Disneyland, ''Ride/WondrousJourneys'' combines emotionally-resonant elements from the Franchise/DisneyAnimatedCanon's first 62 movies, including the Blue Fairy and [[WesternAnimation/BigHero6 Baymax]] flying over a temporarily-redecorated Sleeping Beauty Castle. At California Adventure, ''Ride/WorldOfColor: One'' highlights inspirational moments from various Disney-owned works, both animated and live-action.
236* Ride/SeaWorld celebrated the 50th anniversary of its brand in 2014 across all three parks, by doing things such as bringing in new street entertainment.
237* Almost always averted with the Ride/UniversalStudios parks. There were plans to do a park-wide celebration of Islands of Adventure's 10th anniversary in 2009, but it was cut due to there being virtually no budget for it, as at the time most of it was going into the construction of The Wizarding World of Harry Potter. There was no 20th Anniversary celebration of Universal Studios Florida either, presumably for the same reason. In 2015, this was finally played straight when Universal Orlando honored their 25th anniversary, though even then the milestone nods were mostly limited to some special theming around the park and a new temporary logo. The 30th anniversary in 2020 went virtually unacknowledged, in part due to the UsefulNotes/CoronavirusPandemic shutting the complex down for several months.
238* Done several times with [[Theatre/HalloweenHorrorNights Universal's Halloween Horror Nights]], first for their "Sweet 16" in 2006, then for their 20th anniversary in 2010, and once more for their 25th anniversary in 2015. A 30th season bash was derailed by, again, the UsefulNotes/CoronavirusPandemic; the event was cancelled for 2020 in favor of two reduced-capacity haunted houses plus a third house on the final weekend of the usual season.
239[[/folder]]
240
241[[folder:Toys]]
242* ''Franchise/{{Transformers}}'' has had quite a few of these:
243** The UK version of ''ComicBook/TheTransformersMarvel'', due to a quirk of publishing, ended up with over four times as many issues as the US comic. Issues 100 (1987), 200 (1989), and 300 (1990) all featured wraparound covers and double-length stories.
244*** Issue 50 of the US comic featured [[TheStarscream Starscream]] wiping out a large chunk of the cast before biting the dust himself. This was done to pare down the cast, though many of them (including Starscream himself) would be [[BackFromTheDead brought back]] (most, but not all, being due to [[MerchandiseDriven new toys]], of course).
245*** Issue 75 saw the big battle against [[EldritchAbomination Unicron]]. Unsurprisingly, there were many more casualties.
246** 20th Anniversary (2004):
247*** Toys: A ''huge'' transformable figure of Optimus Prime, complete with his trademark gun, laser axe, a miniature Megatron in gun mode, and of course, the Matrix of Leadership.
248*** ''Anime/TransformersEnergon'' had the episode "Distribution" being the 500th episode of ''Transformers'' to be shown on Japanese TV. It was a [[BizarroEpisode weird, pointless]] episode that spoofed ProfessionalWrestling.
249** ''WesternAnimation/BeastWars'' 10th Anniversary (2006): a rerelease of several figures along with two new figures of Optimus Primal and Megatron. All the toys had pieces which could be used to build Trans-Mutate.
250** ''Anime/TransformersEnergon'' was supposed to be the huge 20th anniversary series. Results, though, were....''mixed'', to be polite. Animation errors, inconsistent naming, character de-evolution, an ''extreme'' focus on selling toys, fluctuating art and animation, bad editing and awful dubbing were all common for ''Energon''. The only remaining awesome factor of ''Energon'' from its Japanese counterpart (''Super Link'') was the music...and not even the ''toyline'' was safe, because that also carried over the flaws of the ''Armada'' toyline.
251** 25th Anniversary (2009):
252*** Toys: The original Optimus Prime toy was rereleased with the inclusion of a DVD of the first three episodes of [[WesternAnimation/TheTransformers the original series]] and a copy of the first issue of ''ComicBook/TheTransformersMarvel''. Also, new toys were produced based on characters from throughout the franchise, from G1 to ''Anime/TransformersArmada''.
253*** The airing of ''WesternAnimation/TransformersAnimated'' (2007-2009) coincided with this period. It celebrated by paying {{homage}} to every single ''Transformers'' incarnation previously made, even the obscure ones that were barely even released in Japan and not at all outside. Granted, many of those nods and references were AllThereInTheManual, but that said, the manuals (that is, the ''Allspark Almanac'', volumes 1 and 2) are extensive and full of {{Mythology Gag}}s.
254** 30th Anniversary (2014): Both Hasbro and [=TakaraTomy=] are featuring 30th Anniversary lines (Hasbro dubbing theirs "Thrilling 30", which began with releases in fall 2013).
255*** ''Film/TransformersAgeOfExtinction'' was released, marking the beginning of an expected second film trilogy.
256*** ''WesternAnimation/TransformersRobotsInDisguise2015'', the sequel series to ''WesternAnimation/TransformersPrime'', was announced, though it wouldn't debut until 2015 (the name was previously used for the English dub of ''[[Anime/TransformersRobotsInDisguise Car Robots]]'' in 2001, not to mention one of [=IDW=]'s [[ComicBook/TheTransformersRobotsInDisguise ongoing comic books]]).
257*** The [[Creator/IDWPublishing IDW]] series's mega-event ''[[ComicBook/TheTransformersDarkCybertron Dark Cybertron]]'' and the follow-up in the ongoing series, ''Dawn of the Autobots'', which includes the ''[[ComicBook/TheTransformersWindblade Windblade]]'' miniseries. Windblade herself was the culmination of a fan poll for the creation of a new character.
258*** Toys: the ''Generations'' toyline features characters from non-G1 continuities (such as [[WesternAnimation/BeastWars Rattrap, Waspinator]], [[WesternAnimation/BeastMachines Tankor]], ''[[Anime/TransformersArmada Armada]]'' Starscream, and ''[[VideoGame/TransformersFallOfCybertron Fall of Cybertron]]'' Skywarp) who are represented in the [=IDW=] continuity (with their Hasbro figures including reprints of ''Dark Cybertron'' chapters). Hasbro debuted Masterpiece Soundwave to open the ''Thrilling 30'' toyline, along with Acid Storm (an MP-11 Starscream redeco), and is reissuing MP-10 Optimus Prime (in a special "Year of the Horse" deco) and Grimlock, and debuting Prowl. Takara issued MP [[Anime/TransformersHeadmasters Soundblaster]] with Ratbat, and will be issuing MP versions of Wheeljack, Bumblebee (with [[WesternAnimation/TheTransformersTheMovie Spike in his exosuit]]), Ultra Magnus, and [[Anime/TransformersVictory Star Saber]].
259** The third part of the ''[[WesternAnimation/TransformersWarForCybertronTrilogy War for Cybertron Trilogy]]'', ''Kingdom'' (2021), commemorates the 25th Anniversary of ''WesternAnimation/BeastWars'' and as such features updated figures for almost the entire ''Beast Wars'' Season 1 cast, some of which had not received new figures in years. The line also commemorates the 35th Anniversary of ''WesternAnimation/TheTransformersTheMovie'' and features figures of Rodimus Prime, Galvatron, and Cyclonus. The rest of the movie cast also got their own dedicated subline in the ''Toys/TransformersStudioSeries'' line, ''Studio Series 86''.
260** 40th Anniversary (2024):
261*** Toys: The celebration for this milestone began two years early in 2022 with the three-year ''Legacy'' toyline which features characters from across the ''Transformers'' multiverse in the vein of the previous ''[[WesternAnimation/TransformersWarForCybertronTrilogy War for Cybertron Trilogy]]''. The first year had [[Anime/TransformersVictory Star Saber and Victory Leo]][[note]][=HasLab=] Project[[/note]] and G1-accurate versions of the Stunticons, Elita-One, and [[ComicBook/TransformersGeneration2 Jhiaxus]], Inferno and Tarantulas to complete the ''WesternAnimation/BeastWars'' Season 1 Predacons as well as Predacon Megatron in his Transmetal II dragon body, ''[[Anime/TransformersRobotsInDisguise RID 2001]]'' Scourge, ''[[Anime/TransformersArmada Armada]]'' Starscream and ''[[Anime/TransformersCybertron Cybertron]]'' Override and Metroplex, and ''[[WesternAnimation/TransformersPrime Prime]]'' Bulkhead, Arcee, and Knock Out. The second year, ''Legacy: Evolution'', had the Nemesis, Devcon, [[Anime/TransformersVictory Deathsaurus]][[note]][=HasLab=] Project[[/note]], and [[ComicBook/TransformersMoreThanMeetsTheEye Tarn]], [[Anime/BeastWarsII Lio Convoy]][[note]]Under a DubNameChange to Leo Prime[[/note]], ''[[Anime/TransformersArmada Armada]]'' Optimus Prime, Hot Shot, and Megatron (to commemorate the 20th anniversary of ''Armada''), ''[[WesternAnimation/TransformersAnimated Animated]]'' Prowl, ''[[WesternAnimation/TransformersPrime Prime]]'' Skyquake and Dreadwing, ''[[WesternAnimation/TransformersRobotsInDisguise2015 RID 2015]]'' Strongarm, and ''[[WesternAnimation/TransformersCyberverse Cyberverse]]'' Shadow Striker. The third year, ''Legacy: United'', had Tigerhawk, [[Anime/BeastWarsII Tasmania Kid]], and [[Anime/BeastWarsNeo Magmatron]], ''[[Anime/TransformersArmada Armada]]'' Tidal Wave, ''[[WesternAnimation/TransformersAnimated Animated]]'' Optimus Prime and Bumblebee, ''[[WesternAnimation/TransformersPrime Prime]]'' Thundertron, ''[[WesternAnimation/TransformersRescueBots Rescue Bots]]'' Chase, and ''[[WesternAnimation/TransformersCyberverse Cyberverse]]'' Windblade.
262*** Though a tie-in cartoon to ''Legacy'' that was pitched to Creator/{{Netflix}} as a DistantSequel to the ''[[WesternAnimation/TransformersWarForCybertronTrilogy War for Cybertron Trilogy]]'' was turned down, a different cartoon, ''WesternAnimation/TransformersEarthspark'', released on Paramount+.
263*** The seventh film in the ''Film/TransformersFilmSeries'' and the second in the rebooted Travis Knight continuity after ''Film/{{Bumblebee}}'', ''Film/TransformersRiseOfTheBeasts'' was released on June 2023. On a toy-related note, the 100th figure in the ''Toys/TransformersStudioSeries'' line is Bumblebee's Offroad Camaro form from the movie (a nod to the first figure in the line being his 1977 Camaro form from the [[Film/Transformers2007 first movie]]).
264* Toys/{{Nendoroid}}s are adorable, pseudo-bubblehead figurines primarily aimed at {{otaku}}. With that in mind, the 100th release in the line is a character who falls outside of that demographic: WesternAnimation/MickeyMouse, who is quite jarring when put next to franchises such as ''Franchise/TouhouProject'' [[note]](no, Nazrin doesn't count)[[/note]] or ''Music/{{Vocaloid}}''.
265* Toys/AmericanGirl has done several.
266** For the 25th anniversary in 2011, the company released special-edition mini dolls of all the the characters in holiday or winter wear; this also included the launch of new characters Marie-Grace and Cécile.
267** Caroline, the War of 1812 character, was released on the 200th anniversary of the war in 2012.
268** The 30th Anniversary in 2016 had eight of the then-active [=BeForever=] characters released as mini-dolls in unique outfits from their collection; their stands posed them in a position similar to the walking pose on the first-edition books. (Kaya, who had a very limited outfit selection, was given the same dress she had in 2011: her special deeskin dress.)
269** During the 35th anniversary in 2021, the company rereleased the first six Historical Characters in "classic" (original) versions of their meet outfits, many of which had been retired with [=BeForever=]. These sets also included their accessories, boxes similar to the first edition ones (only now with open windows) and first edition reprints of their meet books.
270** In celebration of Kit's 100th birthday in 2023, she was rereleased in the Classic version of her meet outfit with accessories and the first edition of her meet book, similar to the 35th Anniversary dolls. This also includes rereleased versions of selected outfits and items from her collection.
271* ''Toys/{{BIONICLE}}'' got a line of six small sets called the Stars, a collection of remakes of characters from across the series' decade of existence. They also happened to be the last sets before the line got the can. They tend to be perceived as [[AntiClimax a rather weak way]] to both celebrate a milestone and end the line.
272* Franchise/{{Barbie}}:
273** The original doll's 50th anniversary brought the My Favorite Barbie line of toys. Each set contains a reproduction of a famous Barbie doll, an extra outfit from the same era, and a retro pamphlet of other Barbie clothes and accessories sold at the time.
274** ''WebAnimation/BarbieLifeInTheDreamhouse'' celebrated the 50th anniversary of Barbie's old friend Midge by adding her as a new major character.
275* Franchise/{{Lego}}:
276** The 10th anniversary of the infamous "Modular Buildings" line was celebrated with the 12th entry to the series, "[[http://brickset.com/sets/10255-1 Assembly Square]]", a behemoth of a model with [[http://www.thebrickfan.com/lego-creator-assembly-square-10255-modular-officially-announced/ subtle references]] to the previous modulars.
277** The 90th anniversary saw the release of a few special commemorative sets. One set contained several mini builds representing the various Lego themes released over the years, most notably one representing ''Toys/{{BIONICLE}}'' which fans had thought Lego had abandoned since 2016. Other sets included UpdatedRerelease[=s=] of the Lion Knights' Castle and the Galaxy Explorer spaceship.
278* ''Franchise/MyLittlePony'':
279** The 20th anniversary of the franchise in 2006 rereleased reproductions of the first six ponies in sets of three.
280** Starting with the 35th Anniversary in 2018, the first six were released again and followed by other ponies released after them. Unlike the 20th anniversary, these were packaged to resemble their original release (though in boxes rather than on blister cards), complete with combs, tail ribbons, and stickers. One of the playsets, the Pretty Parlor, was also released, and the first six were followed up with the Unicorns and Pegasi collection (which included the first pegasi and unicorns; the rerelease was scented) and Rainbow Collection (which included the first multicolored rainbow ponies). More Generation One ponies continue to come out, but without the anniversary markers.
281** The 40th anniversary in 2023 again released the first six, but also include a line of plush ponies that are sold only on Amazon and a release of then never-before-produced Celestial Ponies, which became popular through the fandom.
282* Toys/{{Squishmallows}}: To commemorate the sale of over 100 million Squishmallows, two versions of Hans the Hedgehog wearing a hat and bow tie were made available to preorder. One version has gold trim on his accessories and ears, while the other is made entirely of golden fabric.
283* The 20th anniversary of the ''Toys/{{Tamagotchi}}'' digital pet toys was celebrated through the release of a short film based on the series, titled ''Anime/EigaTamagotchiHimitsuNoOtodokeDaiSakusen''. The short was screened with the movie based on ''Anime/KamisamaMinaraiHimitsuNoCocotama'', which was released in theaters a few months after ''Tamagotchi'''s 20th anniversary (the film and short were released in April 2017; the actual anniversary was in November 2016).
284[[/folder]]
285
286[[folder:Web Animation]]
287* ''WebAnimation/HomestarRunner'':
288** Strong Bad tried (and failed) to answer 50 emails in a row for his 50th WebAnimation/StrongBadEmail, presented his 100th email (a flashback of how he met Homestar) in ''widescreeeeen!'', and traveled to meet alternate universe versions of himself for #150. For #200, there was a big build-up only for the resulting email to be addressed to Homestar rather than Strong Bad- it's then revealed that Homestar has had his own email show all along, which Strong Bad tries to ruin.
289** Homestar Runner started as a children's book made by the creators in 1996, "The Homestar Runner Enters the Strongest Man in the World Contest". Ten years later, they did a cartoon remake of the children's book, with the characters retaining their current, more over-the-top personalities:
290--->'''Homestar Runner:''' Everybody loves the me! I'm a terrific athlete!
291** The tenth anniversary of ''Where My Hat Is At?'' was also celebrated with a cartoon remake, [[SelfParody parodying the original story]].
292** Also parodied in Issue 10 of ''WebAnimation/TeenGirlSquad''. Keep in mind that in ''Teen Girl Squad'', ''everyone'' dies OnceAnEpisode:
293--->'''Cheerleader:''' It's our tenth issue-versary! Let's do a ClipShow!\
294'''So-And-So:''' Let's have [[ShotgunWedding a wedding]]!\
295'''The Ugly One:''' Let's have [[TheBabyTrap a baby!]]\
296'''What's Her Face:''' Let's [[TheyKilledKenny kill someone off]]!\
297'''Narrator Strong Bad:''' Okay! ''(everyone dies suddenly in bizarre ways)''
298** For the 20th anniversary of ''The Homestar Runner Enters the Strongest Man in the World Contest'', the Brothers Chaps did a Homestar cartoon based on the unfinished second Homestar book, ''The Homestar Runner Goes for the Gold'', with the FramingDevice of Strong Bad and Homestar finding the book in a box of "Old HSR Crap" and making fun of their own EarlyInstallmentWeirdness.
299** 20 years after the WebAnimation/StrongBadEmail that introduced Trogdor, Strong Bad [[https://www.youtube.com/watch?v=xixgDV_9RJI shows us]] an old issue of [[Magazine/ElectronicGamingMonthly Electronical Good Graphics Monthly]], that included a demo of an unreleased VGA version of ''Peasant's Quest'', which Strong Bad proceeds to play.
300* ''WebAnimation/Supermarioglitchy4sSuperMario64Bloopers''
301** "[=SM64=]: Mario in real life!? (200 vid special)".
302** "Ssenmodnar 2 (100th vid)" could also count.
303** "P.O.I.S.O.N.E.D. Computer" was [=SMG4=]'s 50th video, [[spoiler:although he didn't really celebrate it and instead put a caption at the beginning saying [[ExactlyWhatItSaysOnTheTin exactly that it]] ''[[ExactlyWhatItSaysOnTheTin is]]'' [[ExactlyWhatItSaysOnTheTin his 50th video]]]].
304* This practice was thoroughly mocked by ''WebAnimation/ZeroPunctuation''. His 100th episode opened with him celebrating the event, complete with party hats and noisemakers. So, to commemorate the event, he reviews a very special game; ''VideoGame/CallOfJuarezBoundInBlood''. Which... is exactly the game he had scheduled anyway.
305-->It's just a number. 101 is ''also'' a number. And so is 99, and at least that one looks like someone getting bumfucked.
306** Later in the review, a sentence is abruptly interrupted by another noisemaker bursting out the side of Yahtzee's head, apropos of nothing. He just apologizes for the interruption and goes on, with what appears to be a bloodied ear.
307** Then, two episodes later, he actually ''does'' review a game he really likes: ''VideoGame/SilentHill2''.
308--->[[BrickJoke And what better game to celebrate my 102nd episode?!]] ''*noisemaker*''
309* ''WebAnimation/HowItShouldHaveEnded'' has a parody of ''Film/Titanic1997'', the second highest-grossing movie of all time, as the 100th video.[[note]]The show already spoofed the #1 blockbuster, ''Film/{{Avatar}}'', a few years earlier.[[/note]]
310* The 100th episode of ''Podcast/WelcomeToNightVale'' brought back every single person who had ever voiced a character.
311* ''WebAnimation/DeathBattle'': Each milestone has a massive bump in budget, animation quality, and score.
312** The 25th episode was "[[Franchise/DragonBall Goku]] VS Franchise/{{Superman}}". This episode also acted as the finale to season 1 of the show.
313** The 50th episode was "Goku VS Superman 2".
314** The 75th episode was "Franchise/PowerRangers VS Anime/{{Voltron}}".
315** The 100th episode was a rematch for "[[Franchise/SuperMarioBros Mario]] VS Franchise/{{Sonic|TheHedgehog}}". In addition, this episode introduces animated segments with the show's hosts Wiz and Boomstick.
316** The 125th episode was "[[Franchise/MortalKombat Goro]] VS [[Franchise/{{Pokemon}} Machamp]]".
317** Season 8 as a whole is designed to celebrate the show's 10th anniversary, with particular note going to the premiere episode, "[[Franchise/StarWars Yoda]] VS [[Franchise/KingdomHearts King Mickey]]", the 150th episode, "[[Wrestling/RandySavage Macho Man]] VS Kool-Aid Man", and the finale, "[[Webcomic/OnePunchMan Saitama]] VS ComicStrip/{{Popeye}}".
318* Episode 39 of ''WebAnimation/MinilifeTV'' is dedicated to the show's official 1 year anniversary. Chris and Ian celebrate by doing what they did in the very first episode; blowing up dummies.
319[[/folder]]
320
321[[folder:Webcomics]]
322* In the hundredth ''ComicStrip/TwistedToyfareTheatre'' strip, [[TonightSomeoneDies "Tonight, one of these characters will die!"]] Quoth Mego Spidey: "Hope it's me."
323** Note that the characters themselves have a huge party to commemorate the event - but Reed Richards secretly confides in Spider-Man that this isn't actually the 100th strip, technically speaking, due to some miscellaneous strips featured in Toyfare's sister magazines like ''Wizard'' and ''Inquest Gamer''. As such, at the very end Spider-Man goes back in time to three issues ago and gives the huge cake from the party to the stars of the real 100th strip, the motley bunch of Stormtroopers.
324* ''Webcomic/EightBitTheater'' never does anything special for its milestones, even for its 1000th. Although the titles do sometimes reference the number, such as "Episode 255: Maximum 8-bit Hexadecimal Value is FF. Coincidence?", "Episode 404: Comic Not Found", "Episode [[NumberOfTheBeast 666]]: Is Just Another Comic, Calm Down", "Episode 911: It's A Conspiracy", "Episode 912: For Real Emergencies", "Episode 913: The Last Of The 9XX Jokes", and "Episode 1000: I can't believe someone was asshole enough to make 1,000 sprite comics" followed by "Episode 1001: I can't believe someone was asshole enough to make more than 1,000 sprite comics".
325* ''Webcomic/TheOrderOfTheStick'' was intended to have the group meeting Xykon on the hundredth strip, but the writer messed up the timing, and had one character [[LampshadeHanging complaining]] about it ("And I was expecting something impressive for the hundredth episode.") Every other hundredth was something special, though. The two hundredth was the very long battle with Miko, the 300th revealed Xykon's massed army, the four hundredth was a kiss between two major characters, and the five hundredth was the start of Roy watching the rest of the Order. However, the 600th, 700th, and 800th comics had nothing particularly special about them, though the 600th repeats the same "I thought there'd be something special..." joke from the 100th episode, complete with a "DidntWeUseThisJokeAlready" conversation. Milestones returned with the next few hundred-counts. Strip #900 showed [[spoiler:a scene of another world beyond the rift sealed by Girard's (now destroyed) Gate]]. In Strip #1000, [[spoiler:vampire Durkon declared himself to be the representative of the death goddess Hel and tipped the divine vote toward destroying the world before the Snarl escaped]]. Strips #1100 and #1200 were back to being nothing particularly special.
326* ''Webcomic/OneOverZero'', in addition to ending with comic #1000, dedicated comic #251 to its "1000th panel" celebration.
327* ''Webcomic/MegaTokyo'' used its comic #1000 to show Kimiko having a critical part of the nature of the world around her revealed to her, and revealed Miho's LittleMissBadass status in strip #1024 (#1 KB). And comic [[LeetSpeak 1337]] is triple length, showing an ImagineSpot of Largo ammasing an army of [=Ph33rb0ts=].
328* ''Webcomic/CaptainSNES'' managed to work its [[http://www.captainsnes.com/2002/09/26/200-blue-dragon-part-9-fourth-wall-whats-that-2/ 200th story comic]] celebration into the plot. The [[http://www.captainsnes.com/2005/10/20/500-on-the-bright-side-think-of-the-ratings/ 500th]] was slightly clumsier.
329%% * ''Webcomic/{{Narbonic}}'' had a very silly one-year anniversary celebration.
330* ''Webcomic/QuestionableContent'':
331** #666: '''''[[http://questionablecontent.net/view.php?comic=666 Spontaneous metal interlude!]]'''''
332** #1000 was titled [[http://questionablecontent.net/view.php?comic=1000 "Gratuitous Nudity!"]] The author apologized [[http://questionablecontent.net/view.php?comic=1003 three strips later]].
333** And then there was [[http://questionablecontent.net/view.php?comic=1337 number 1337]].
334* ''Webcomic/VGCats'' had a flash animation for the 100th comic, and actually skipped the 200th comic with a note reading "TBA 2009". Which now reads "TBA - Never".
335* ''Webcomic/{{Adventurers}}'' had hundreds of comics numbered 999 so that the final chapter would be number 1000.
336* ''Webcomic/AwkwardZombie'' has [[http://www.awkwardzombie.com/comic1-120808.php its 100th comic]], in which [[spoiler:Master Hand kills the [[BackForTheDead recently returned Roy]] [[DroppedABridgeOnHim in one hit]].]]
337* ''Webcomic/SluggyFreelance'' includes a piece of simple animation every year on its anniversary (usually making someone dance to the song "X Years of Nifty Darn Comics"). The tenth anniversary featured this plus a bonus comic that referenced the "spam Satan" joke from the very first strip.
338* ''Webcomic/DarthsAndDroids'' celebrates every 50th strip by adding another level to the string of "What our webcomic is in this universe, since the thing we're parodying doesn't exist" strips following [[http://www.darthsanddroids.net/episodes/0050.html the 50th strip]]. While [[http://www.darthsanddroids.net/episodes/1000.html the actual 1,000th strip]] has nothing worth celebrating (it's the beginning of Luke's adventure on Dagobah), [[http://www.darthsanddroids.net/arks/0050.html the accompanying alternate universe]] is based on Creator/GeorgeLucas's other famous franchise, ''Franchise/IndianaJones''.
339* ''Webcomic/TheKamics'' is usually sarcastic about it's milestones, [[http://www.theduckwebcomics.com/The_KAMics/4788382/ comic #500 is a good example of this]].
340* Every hundredth ''Webcomic/YetAnotherFantasyGamerComic'' strip is in color.
341* The 200th comic of ''Webcomic/BrawlInTheFamily'' had a [[MusicalEpisode musical accompaniment]], dedicated to all the {{Mooks}} that [[WhatMeasureIsAMook died at the hands]] [[VideoGameCrueltyPotential of gamers everywhere]].
342* ''Webcomic/{{XKCD}}'' skipped comic number 404, so that a 404 'File not found' error appears if someone tries to access it. And for the [[http://xkcd.com/1000/ 1000]]th comic, a binary joke: only 24 comics till a nice round number![[note]] 1024 is 10 000 000 000 in base two. The next binary milestone will be 100 000 000 000 (2048 comics), and at 4096 comics the total would be 1 000 000 000 000 in binary and 1 000 in hex.[[/note]]
343* In honor of Website/PlatypusComix's 10th anniversary, accessing the site during the week of February 7, 2011 brought up a page which resembled the homepage used in 2001. Through the Wayback Machine, the page even included links to old comics and articles, as well as a dated homepage for Platypus Comix's parent site, Toon Zone. Clicking, "Click here to restore status quo" brought up the usual website, decked out with a vertically-oriented banner, which featured characters from both ongoing and discontinued comics partying together. And during the 10th anniversary of Toon Zone, Peter Paltridge released an ''Webcomic/ElectricWonderland'' comic in which the main characters find themselves in Toon Zone's domain while pursuing a thief.
344* ''Webcomic/TheAdventuresOfDrMcNinja'': "[[http://drmcninja.com/archives/comic/4p32 Happy first anniversary]], Dr. [=McNinja=]!" It's a [[WhamEpisode Wham Strip]].
345* ''Webcomic/ElGoonishShive'':
346** The webcomic used to celebrate each year of the comic with a filler comic featuring the whole main cast. It stopped doing this after the 6th anniversary but acknowledged the 9th with [[http://www.egscomics.com/sketchbook/?date=2011-01-20 this filler]] which has links to previous milestone celebration comics.
347** For the 10th anniversary, it celebrated with [[http://egscomics.com/sketchbook/?date=2012-01-21 a filler comic]] that mimics the setup and dialog of [[http://egscomics.com/?date=2002-01-21 the very first comic]] but is in color, features transformations, references the anniversary and has a different ending.
348* ''Webcomic/SonicTheComicOnline'' celebrated the 250th issue of the series with a mega-packed issue. The issue is the largest so-far in the series, the online fancomics or the original ''ComicBook/SonicTheComic''; it also featured more artists in one issue then any other issue. It feature various cameos from characters that haven't appeared in a long time.
349* ''Webcomic/ArthurKingOfTimeAndSpace'':
350** Its first year endedwith [[http://www.arthurkingoftimeandspace.com/0365.htm the Battle of Beldegraine]] and [[http://www.arthurkingoftimeandspace.com/0366.htm Arthur learning who Morgan is]]. It ended its second year with [[http://www.arthurkingoftimeandspace.com/0731.htm a timetravel flashforward]]. The [[http://www.arthurkingoftimeandspace.com/1096.htm third]] and [[http://www.arthurkingoftimeandspace.com/1462.htm fourth]] aniversaries just get mentioned in passing, and the [[http://www.arthurkingoftimeandspace.com/1827.htm fifth aniversary]] is the pre-TimeSkip WhamEpisode. Sixth passed without comment (except in TheRant), and seventh wasn't even mentioned there.
351** The AKOTAS characters also discuss whether they should celebate their [[http://www.arthurkingoftimeandspace.com/0300.htm three hundredth strip]] (the panel in the news section) and are shown celebrating in the [[http://www.arthurkingoftimeandspace.com/0500.htm five hundredth strip]]...because it's the aniversary of the first ''ComicStrip/{{Peanuts}}'' strip. [[http://www.arthurkingoftimeandspace.com/2000.htm The two thousandth]] is the ''return'' from the TimeSkip.
352* Played straight in ''Webcomic/SquareRootOfMinusGarfield'' in [[http://www.mezzacotta.net/garfield/?comic=1000 1000th Root of Minus Garfield]] and parodied in [[http://www.mezzacotta.net/garfield/?comic=1001 Party Like It's #999]] (the comic immediately afterwards).
353* ''Webcomic/MountainTime'' celebrated its [[http://mountaincomics.com/2013/12/09/mountain-time-500/ 500th episode]] with an extended-length comic, followed by 25 more comics which, seemingly in defiance of the series' norm, were pretty much straight-up ContinuityPorn.
354* ''[[http://www.keezees.com/ Keezees]]'' celebrates every 100th episode; episode 100 revealed the main character's surname; episode 200 took the form of an [[http://www.keezees.com/freebies/200.mp3/ MP3]] (warning: it's loud) which, when downloaded, recorded onto an audio cassette and played back on a ZX Spectrum, revealed episode 200 onscreen; and episode 300 was Keezees first colour episode; the author also ran a contest at that time where one lucky reader was [[http://www.keezees.com/cards/irina.jpg/ immortalised in Keezees trading card form.]]
355* PlayedForLaughs on the [[http://l-empire.smackjeeves.com/comics/1717107/page-1000/ 1000th page]] ''Webcomic/LsEmpire'' when one of the characters tries to celebrate, only to be informed that it was technically only page 956 due to filler, title pages, and holiday specials. The actual 1000th page involved [[http://l-empire.smackjeeves.com/comics/1793244/sammer-kingdom-smackdown-pt-16/ trolling the audience]].
356* The Webcomic/{{Walkyverse}} tends to have low-key acknowledgements of its various anniversaries. Often, these acknowledge the universe's history; significant changes in characters' lives are also often timed to coïncide with the anniversary
357** The [[http://www.itswalky.com/comic/nine/ ninth anniversary strip]] ran in ''Webcomic/{{Joyce and Walky}}'', and sees Danny and Billie move into a house together. It is a double-length full-colour strip, in the vein of ''Webcomic/{{Its Walky}}'''s Sunday strips.
358** The [[http://www.itswalky.com/comic/ten-years/ 10th anniversary]] saw the birth of Billie and Danny's first child, while also {{call|back}}ing back to the first two ''Webcomic/{{Roomies}}'' strips.
359** ''Webcomic/{{Shortpacked}}'' got the [[https://www.shortpacked.com/comic/elevenyears 11th anniversary]], which saw the core characters all move into a house together. This comic once again called back to the first two ''Roomies!'' strips, as well as various other iconic moments from ''Roomies!'' and ''It's Walky!''
360** ''Shortpacked!'' also got the 12th anniversary, and showed what Joyce and Walky were up to in their own comic, and what Robin would have to do with it.
361** The six-year anniversary of ''Shortpacked'' itself [[https://www.shortpacked.com/comic/six was a double-length comic]].
362** On the [[https://www.shortpacked.com/comic/psyche fourteenth anniversary]], Amber accepts Mike's marriage proposal. That particular comic ran on a Saturday, which does not normally happen, but that's the day the anniversary fell.
363** The fifteenth anniversary of the universe was also the second anniversary of the beginning of ''Webcomic/{{Dumbing of Age}}'', resulting in two notable comics on the same day. In ''Shortpacked'', [[https://www.shortpacked.com/comic/fifteen Amber and Mike get married]], and a bunch of characters from the old webcomics reäppear. ''Dumbing of Age'', meanwhile, did [[https://www.dumbingofage.com/2012/comic/book-2/06-strange-beerfellows/fifteen-2/ a strip]] which, yet again, called back to the very first ''Roomies'' comic. More significantly, David Willis began uploading every single ''Roomies, It's Walky'', and ''Joyce and Walky'' comic, including those that were previously exclusive to subscribers or only printed in comic books, in proper reading order and upscaled; this archive can now be found [[http://www.itswalky.com/ here]].
364** ''Webcomic/{{Shortpacked}}'' itself formally ended on its 10th anniversary. There have been a few new comics since then, but the anniversary was the end of the storyline and of regular updates.
365[[/folder]]
366
367[[folder:Web Original]]
368* In ''Roleplay/DestroyTheGodmodder'', actions are more powerful and far more likely to succeed when they happen on milestone posts. The first post of a page milestone, or a number of posts milestone, a slight bonus is even given if someone calls their page claim. There was also a very big and interesting event involving time travel shenanigans on the one year anniversary.
369* There's the general case of "1 million hits", "1 million subscribers", etc. This usually has some celebration or special comment on sites that consider those relevant.
370* For their 100th episode ''Podcast/TalkRadar'' put together a six hour long podcast that was half original content, half clip-show.
371* ''WebVideo/TheMusicVideoShow'' celebrated its 100th episode with a 1 hour, 3 part episode review of [[Music/RKelly R. Kelly's]] "Music/TrappedInTheCloset". Each part is presented by the hosts of season one, three and four. [[spoiler:The host of season two appears in the second part.]]
372** To celebrate the golden birthday of the show (4th season, making the show 4 years old), the beginning of the season dedicated a week of episodes to Music/FallOutBoy.
373** The show celebrated it's [[https://youtu.be/lwmGRo9V6Oc 200th episode]] with Hanson's [=MMMBop=] music video. [[spoiler:Actually it's Music/MichaelJackson's Thriller.]]
374** Episode 300 was celebrated with 10 episodes uploaded in the same day, each one had the hosts for one episode to appear in. [[spoiler:And also, Kiara appears in the final minutes of the 10th episode.]]
375* Website/ChannelAwesome:
376** Most of the team flew into Chicago to film the conclusion to the feud between WebVideo/TheNostalgiaCritic and WebVideo/TheAngryVideoGameNerd. The result was the [[WebVideo/TGWTGYearOneBrawl 1 Year Anniversary Brawl]] that pitted the site's critics (led by the Nostalgia Critic) against the site's gamers (led by the Angry Video Game Nerd). It has [[http://thatguywiththeglasses.com/videolinks/thatguywiththeglasses/nostalgia-critic/6719-1-year-anniversary-video to be seen]] for the [[SugarWiki/MomentOfAwesome amount of awesome to be believed]].
377** Celebrating the site's anniversary with a gigantic crossover was a traditional event. The second anniversary of the website featured the six-part film ''WebVideo/{{Kickassia}}''. The third one had the seven-part film ''WebVideo/SuburbanKnights'' with more effects and callbacks to ''Kickassia''. The fourth one was an eight-part film known as ''WebVideo/ToBoldlyFlee'', containing more continuity and improved CGI effects. The fifth (and final) crossover was an anthology film called ''WebVideo/TheUncannyValley'', featuring five short subjects from various producers.
378** Generally, critics on CA (present and former) treat their 50th and 100th reviews as such -- [[WebVideo/BrowsHeldHigh Kyle]] reviewed Melancholia, and WebVideo/JesuOtaku reviewed the FMA Anime, for instance.
379* ''WebVideo/AtopTheFourthWall'':
380** Linkara celebrates the anniversary of his text reviews by reviewing issues of ''ComicBook/YoungbloodImageComics'', and celebrates the anniversary of his video reviews by reviewing story arcs from ''ComicBook/TheCloneSaga''.
381** The 100th episode had him review a Franchise/SonicTheHedgehog comic book (specifically ''[[ComicBook/SonicTheHedgehogArchieComics Sonic Live!]]''), one of his most requested comics to review.
382** For the 200th episode, he finally decided to rip into ''ComicBook/OneMoreDay'', the one comic people have been clamoring for him to tear to shreds since the beginning.
383** For the 250th, he did a ''really'' bad ''ComicBook/TandyComputerWhizKids'' PSA/advertising comic and got into an argument with the camera for using the "Merry Christmas from Atop the Fourth Wall" banner again instead of a 250th episode one, which led the mystery editor to crudely cross out the Christmas message and substitute the desired message without removing the snow or Jingle Bells. The real effort apparently went into the editing for one of his [[SanitySlippage Combine Harvester breakdowns]].
384** For the 300th episode, Linkara reviewed Creator/FrankMiller's ''Holy Terror'', which is another installment in "Miller Time". Linkara actually claimed that he hated ''Holy Terror'' more than any other comic he's reviewed and that it's the complete antithesis to everything he believes in. The episode's ending also features Linkara fighting his MirrorUniverse doppelganger, [[ContinuityCavalcade using various weapons and skills from the past 300 episodes]].
385** For the 400th episode, he reviewed a fan-translated copy of ''Marvel Super Special #7'', an adaptation of ''Film/SgtPeppersLonelyHeartsClubBand''. Given the material he was working with, it was also a MusicalEpisode with parodies of Music/TheBeatles throughout.
386** 2018 was an important milestone year for Linkara, for not only did he reach his 500th episode by reviewing ''ComicBook/TheNew52FuturesEnd'', but it was also the show's tenth anniversary, which he celebrated by having ''every single review that year'' be a followup to a previous review. The requisite ''Clone Saga'' review on the anniversary itself was a revisit to his first video review, "Smoke and Mirrors", which originally had the first two parts only available as text reviews.
387** For his 600th episode, Linkara chose to review ''Sins Past'', an infamous story arc from ''ComicBook/TheAmazingSpiderManJMichaelStraczynski''. This review is framed as a randomly-selected improvision to [[RunningGagged cap off a running gag in these milestones]] where WebVideo/TheCinemaSnob shows up assuming Linkara was reviewing a comic based on ''Film/{{Caligula}}''. This milestone opens with Linkara actually planning to review said comic, only to be forced to cancel it after being informed of behind-the-scenes drama.
388** For the 700th episode, Linkara reviewed ''Superman: Year One'', with a FramingDevice of his future self being interviewed and constantly retconning the history of his own show in order to keep it fresh for new audiences.
389* ''WebVideo/TheNostalgiaCritic'':
390** The Critic celebrated his 100th episode by... [[SubvertedTrope showing a half-assed clip show featuring a scene from his Captain Planet review]]. [[spoiler:[[DoubleSubversion But said clip show argued with him, forcing him into reviewing]] ''Film/BattlefieldEarth.'']]
391** Subverted with his 300th episode. He (cliplessly) reviewed ''Film/TheForceAwakens'' with Creator/BradJones, but it was pretty low key. Mentioned because his ''299''th episode, ''Film/ChristmasWithTheKranks'', was a ContinuityPorn WhamEpisode.
392** To celebrate 10 years of doing the Nostalgia Critic, Doug Walker hosts the top 5 best [=NC=] videos as voted by his fans. Also the Critic reviews the heavily requested film: ''WesternAnimation/NormOfTheNorth''.
393* ''WebVideo/TheNostalgiaChick'': For her third-year anniversary of being on the site, Lindsay did an in-depth commentary on her first ever review, ''WesternAnimation/{{Pocahontas}}''.
394* WebVideo/BennettTheSage dedicated his 100th and 200th ''Anime Abandon'' episodes to some of his most requested subjects: ''Anime/MDGeist'' (100th) and the ''Manga/JojosBizarreAdventureStardustCrusaders'' OVA series (200th). In the case of the ''[=JoJo=]'' OVA, it was Bennett's longest review to date, clocking in at over 70 minutes.
395* ''WebVideo/TheAngryVideoGameNerd'':
396** The Nerd himself had a special episode as his 100th. ''Action 52''? That's his 90th episode. ''VideoGame/NintendoWorldChampionships''? No, it wouldn't happen for another four episodes. It's about [[VideoGame/RoboticOperatingBuddy R.O.B.]]
397** For the 10th anniversary of the show, the AVGN is finally broken by the Desert Bus minigame on ''VideoGame/PennAndTellersSmokeAndMirrors'', only to learn his criticisms are being heard when he discovers the ''VideoGame/CastlevaniaIISimonsQuest'' hack, ''Castlevania II: Simon's Quest Redaction'', regaining his resolve and directly leading into ''Film/AngryVideoGameNerdTheMovie''.
398** Cinemassacre's 10-year anniversary video[[note]]This considers the upload date of episode 3 ''and'' the date the channel was created, which is immediately displayed in the beginning of the video[[/note]] starts with the AVGN reflecting how [[TechnologyMarchesOn technology has advanced the past 10 years]]--PlayedForLaughs, of course (it took him ten years to get an HDTV). He then proceeds to review several ''VideoGame/MegaManClassic'' and ''VideoGame/MegaManX'' games. Halfway through, he claims to be quitting, and suddenly he finds himself travelling through AVGN history. The Nerd and his past selves then end up reviewing the SoBadItsGood ''Mega Man'' DOS games, ''VideoGame/MegaManLegends'' and ''VideoGame/MegaManX7''.
399** The 200th episode, which was split into three parts, focuses on the Nerd reviewing the ''entirety'' of Creator/{{LJN|Toys}}'s video game library, with the FramingDevice showing he was given ownership and control of LJN, and he challenges himself to reproduce the library using the same resources and limitations as the company did back then, hoping he'd succeed at where they failed.
400* The 100th episode of ''AudioPlay/WereAlive'' was accompanied by a revamp of the show's website, launching a new iPhone app for downloading the podcast and new merchandise in the online store. In story the episode ended with the [[NuclearOption destruction]] of [[spoiler: the safe-zone in Boulder.]]
401* ''WebVideo/EatYourKimchi'': The 200th video was ''A Day in the Life'' and the 100th Music Monday had an 18 minute "best of" compilation video.
402* ''WebVideo/GameGrumps'' downplays this in TheStinger to the hundredth ''[[VideoGame/SonicTheHedgehog2006 Sonic 2006]]'' episode, wherein Arin briefly mentions it.
403* WebVideo/GloveAndBoots celebrated 100k subscribers by including [[LongList (almost) all of them in a two-and-a-half hour video!]]
404* Screen Junkies celebrated the 100th edition of ''WebVideo/HonestTrailers'' by doing a trailer of ''Film/FiftyShadesOfGrey''.
405* ''WebVideo/OliverHarpersRetrospectivesAndReviews'':
406** He celebrated his 100th review by reviewing one of his favorite films, ''Film/Ghostbusters1984''.
407** Did reviews of ''Film/SupermanTheMovie'' and ''Film/StarTrekTheMotionPicture'' to celebrate their 35th Anniversaries.
408* ''[[WebAnimation/TacoMan Taco-Man Plays a Video Game]]'':
409** Taco-Man celebrated 50 episodes with the [[https://www.youtube.com/watch?v=GFQ9u_FdxQk 50th Episode Craptacular]], in which he tried to re-play some of the games he reviewed before.
410** The 60th episode, ''VideoGame/ZeldaIITheAdventureOfLink'', had Taco-Man announce the number to an unfazed Princess Zelda in the middle of the video.
411** The 75th episode has Taco-Man play a game about himself, a 2006 parody of ''VideoGame/NightTrap''.
412* [[Website/FourChan 4chan]]'s /v/ board celebrated its 300 ''millionth'' post, which was a photo of one of the Toys/{{amiibo}} costumes in ''VideoGame/Splatoon1'', followed by "Splatoon is new meme", by giving it a sticky, and then '''[[ShootTheShaggyDog publicly banning the post]]'''.[[note]]The ban was for 14 days.[[/note]]
413* To celebrate the third anniversary of ''Blog/AskKingSombra'', the author of the blog did an animation of Sombra singing "Up There" from ''WesternAnimation/SouthParkBiggerLongerAndUncut'', with {{Call Back}}s galore.
414* The 100th episode of ''WebAnimation/RedVsBlue'' was the final episode of "The Blood Gulch Chronicles", the 200th Episode was the final episode of season 10 and the conclusion of the Freelancer storyline.
415* For their 10th anniversary, WebVideo/SuperMarioLogan remade [[https://www.youtube.com/watch?v=PAqbNgpynCA their first video]] as [[https://www.youtube.com/watch?v=MG_kKm-TDvQ a proper reenactment of Mario's "Got Milk?" commercial]], but with a TwistEnding.
416* The WebVideo/FineBrothers' React Channel subseries "People vs. Food" celebrated its 100th episode by challenging the reactors to eat an entire, suitably decorated ice cream cake without using their hands.
417* Some of Creator/AllisonPregler's series have a few examples:
418** The 50th episode of her first series ''Obscurus Lupa Presents'' was a review of ''Film/TexasChainsawMassacreTheNextGeneration''. For the 100th episode, she reviewed her favorite film ''Film/EvilDead2''.
419** For ''WebVideo/{{Baywatching}}'', she asked fans what they wanted for the 100th episode, which ended up being a video of trivia on ''Series/{{Baywatch}}'' itself.
420** ''Movie Nights'''s 50th episode was Allison and WebVideo/{{Phelous}} reviewing the Creator/ScottBakula film ''I-Man''. For the tenth anniversery of Allison making videos overall, she did a special ''Movie Nights'' episode on ''Film/LittleMonsters'', her favorite movie as a kid.
421* Almost every ''WebVideo/ScottTheWoz'' season ends after 50 episodes, so naturally each SeasonFinale also doubles as a milestone celebration for Scott. The only exceptions so far are "You're Not An RPG Guy" which ended the season at Episode 195 and "Have a Bootleg Gaming Christmas!" which ended the season at Episode 259.
422** "A Very Madden 08 Christmas" just so happened to be the 50th episode.
423** "It's Awesome Baby!" is simultaneously the 100th episode and the BigDamnMovie.
424** "It's a Bargain Bin Christmas" is simultaneously the 150th episode and another BigDamnMovie.
425** "Borderline Forever" is simultaneously the 200th episode, and a literal BigDamnMovie, being 58 minutes long (1 hour and 3 with credits) and the longest non-Nintendo Switch: X Years In episode.
426** "Merry Christmas, Data Design!" is the 250th episode. Also, despite being a Christmas-themed episode it was released long after the Christmas season was over, which not only Scott acknowledges in the description but he also works that fact into the plot.
427* Website/ThisVeryWiki had [[https://tvtropes.org/pmwiki/posts.php?discussion=15967365450A39516200 a thread]] dedicated to celebrating 500,000 articles, with the special article being the page on ''VideoGame/NotebookWars''. Lesser milestones are instead noted on [[Timeline/TVTropes this page]].
428* ''Podcast Like It's 1999'', a retrospective of films of 1999 (plus other pop culture, mostly in bonus episodes) had its hosts celebrate their '''99th''' episode by discussing ''Film/ManOnTheMoon'' with Creator/TigNotaro as the first half of a rare two-part episode -- meaning Part Two was Episode 100 for a more traditional milestone.
429* Soyjak.party celebrated its second birthday by changing usernames from "Chud" (equivalent to Website/FourChan's "Anonymous") with "🎉 2 years! 🎂".
430* ''WebVideo/CinemaSins'':
431** To celebrate 10 years, the team re-sinned several movies they had already previously sinned. In order, these are: ''{{WesternAnimation/Frozen|2013}}'', ''Film/BatmanBegins'', ''{{Film/The Avengers|2012}}'', ''Film/TheHungerGames'', ''Film/TheDarkKnight'', ''{{Film/Prometheus}}'', ''Film/TheAmazingSpiderman'', ''Film/TheAmazingSpiderman2'', ''{{Film/Avatar}}'', and ''Film/TheDarkKnightRises''.
432** Their 1000th movie sinned was ''Film/EverythingEverywhereAllAtOnce''. Similar to the movie's multiverses, it goes through a multiverse of [=CinemaSins=], which includes a universe with a different primary narrator, a British [=CinemaShortcuts=] universe, a podcast universe, a livestream universe, a [[LOL69 Stimulation Simulation]] universe, and a [[StylisticSuck "dumb"]] universe. Only the narrator of the main universe appears to be aware of the different universes.
433* {{WebVideo/Caddicarus}}'s 1 million subscriber special has him going over every main ''Franchise/SpyroTheDragon'' game, his most requested topic since he had started his channel. It is also easily his longest video yet--while his recent videos had reached the one hour mark, this one is ''nearly two and a half hours long''.
434* ''Website/NobodyHere'': "[[https://nobodyhere.com/justme/trash.here Trash]]" was released to celebrate the site's 25th anniversary. It features many references to [[CallBack earlier stories on the site]].
435[[/folder]]
436
437[[folder:Other]]
438* The King of UsefulNotes/{{Sweden}} sends a Happy Birthday-card to every Swedish citizen on their 100th birthday.
439* ''Think!'' UK commemorated the 50th anniversary of their campaign in 2014 with a PIF featuring first responders singing Kool and the Gang’s “Celebration” while attempting to revive a victim of a DUI wreck. A caption explained in 50 years, the number of annual British drink driving deaths had fallen from a high of 1,640 to 230…which is still 230 too many, as shown by the DeathNotification at the end.
440* ''Creator/ChuckECheese'':
441** The animatronics show has a song called "Every Boy, Every Girl" that gets remade every ten years that tells the story of the franchise and how the group of characters was formed, using a different arrangement, a different number of years that have passed [[note]] for the 40th anniversary edition, all the lyrics except for the chorus and "memories on every page" were replaced due to various retcons made after the 2012 retool [[/note]] and a different accompanying video, usually showing clips of kids at the restaurant alongside them. [[note]] The original version showed the story via a scrapbook, the second showed Chuck E Cheese puppets in various parts of the restaurant being interviewed, and the third one was done in a storybook-esque style.[[/note]] It first appeared in 1997 for the franchise's 20th anniversary.
442** For the 30th anniversary, [[https://www.youtube.com/watch?v=loWOZ1yPvok the classic CEC TV intro]] was brought back.
443** The 40th anniversary had [[https://youtu.be/_5TAQYoJzvQ intermission videos]] explaining the history of the restaurant that showed classic videos related to the decade being covered. Off note was the 1987 video, which was dedicated to ''Showbiz Pizza Place'', their rival.
444* When Belgian production company Creator/{{Studio100}} celebrated its 20th anniversary in Belgium, it decided to create a [[https://www.youtube.com/watch?v=iYIeFS257OY&t=71s special music video called "Feestje"]] [[Series/SamsonEnGert featuring old]] [[Series/KabouterPlop and]] [[Literature/MayaTheBee new Studio 100 characters]] [[MassiveMultiplayerCrossover singing together.]] They also performed the song at the company's annual [[https://www.youtube.com/watch?v=Xe-PdXlSRy0 "De Grote Sinterklaas Show"]] that same year in 2016. For the studio's 25th Anniversary, they made a song called [[https://www.youtube.com/watch?v=U4U96ujZ0Zc "Festival"]] which featured their characters singing together, [[RealLifeWritesThePlot but was recorded separtely due to the]] UsefulNotes/Covid19Pandemic.
445* It's not uncommon for vehicle manufacturers to produce a model as an anniversary milestone for the company, especially in the case of CoolCar manufacturers.
446** The Lamborghini Countach 25th Anniversary was produced in 1988 to celebrate 25 years of the company since the days of making tractors.
447** The 1987 Ferrari F40 and 1997 Ferrari F50, produced for the company's respective anniversaries.
448* The 2021 release of the Advertising/MonsterCereals, for its 50th anniversary, combined all five cereals together in to one special cereal, entitled "Monster Mash". Along with this cereal, a [[CoverVersion cover of the song of the same name]] was also released.
449* The 90th UsefulNotes/MacysThanksgivingDayParade featured a revamped balloon of WesternAnimation/FelixTheCat, who was one of the first fictional characters to receive a balloon.
450* To celebrate [[UsefulNotes/{{Pakistan}} Pakistan's]] 75th anniversary as an independent state, the State Bank of Pakistan introduced a [[https://en.wikipedia.org/wiki/Pakistani_75-rupee_note 75-rupee note]]
451[[/folder]]

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