History Main / Revision

* ''VideoGame/AnotherCode''" The second game, ''R - A Journey into Lost Memories'', added that Ashley's received a pendant from her mother as a gift on her third birthday, an item which becomes vital to the plot of this game; Ashley is also ''never'' without it and both she and her dad are fairly concerned about keeping it safe. This keepsake is never seen or mentioned in the previous game, ''Two Memories'', where it is even a plot point that Ashley knows less about her mother than she does about her father. When the games were remade for ''[[VideoGameRemake Recollection]]'', this story element was completely altered; now Ashley receives her mother's pendant towards the end of ''Two Memories'', and her mother can be seen wearing it in flashback sequences.

* ''VideoGame/AnotherCode'': ''R - A Journey into Lost Memories'' changed one thing about the events of Ashley's third birthday, in that she gained a pendant which becomes vital to the plot of this game. Where it falls into revision is that is a major plot point that Ashley is ''never'' without it and both she and her dad are fairly concerned about keeping it safe, despite it never having been mentioned or discussed in the previous game, ''Two Memories''. In ''[[VideoGameRemake Recollection]]''; as one of the narrative changes made to the duology, ''Two Memories'' is altered to have Richard gift Ashley the pendant towards the end of the game, in addition to showing her mother Sayoko wearing the pendant in both games' flashback sequences.

* ''VideoGame/AnotherCode R'' changed one thing about the events of Ashley's third birthday, in that she gained a pendant which becomes vital to the plot of the game. A bit of a clunkier revision, as while it doesn't alter or contradict anything, the pendant suddenly becomes very important to the point where Ashley is never without it and both she and her dad are fairly concerned about keeping it safe, despite it never having been mentioned or discussed prior to that game.

** Baron Heinrich Zemo is another case. He was created by Stan Lee and Jack Kirby in Avengers #4, and retroactively treated as Captain America's achnemesis during World War II. Readers may get the wrong idea by the stories, but Zemo was not created during UsefulNotes/TheGoldenAgeOfComicBooks. And the famous thing of plane where Bucky "died" and Captain America fell to the ocean and froze, was not Captain America's finale retconned as NotQuiteDead, but a plot created by Lee and Kirby when they brought him back.

** At first, Goku's monkey tail, super-strength, Great Ape form, and overall durability were just an homage to Sun Wukong, since the series was loosely based on ''Literature/JourneyToTheWest''. The reveal that he belongs to a race of monkey-tailed alien mercenaries who conquer planets didn't happen until ''Anime/DragonBallZ''.

* ''Franchise/{{Fallout}}'' has one with the commonly-used chem (in-universe addictive drug) known as "Jet". In ''VideoGame/Fallout2'', set 160 years after the Great War, Jet was invented by the [[TeenGenius Teenage Chemist]] Myron, an [[SmallNameBigEgo arrogant]], [[InsufferableGenius insufferable]], [[MorallyAmbiguousDoctorate amoral]] [[{{Slimeball}} Scumbag]] hated by ''[[HatedByAll everyone]]'' in the wasteland. In ''VideoGame/Fallout4'' however, Jet is then established to have existed since before the Great War, with the logs from one pre-war Vault mentioning how the chem was supplied during its construction. Considering how much of a [[SmugSnake smug]], [[AttentionWhore attention]]-[[FakeUltimateHero seeking]] [[CompulsiveLiar constant-liar]] Myron was back in ''2'', it wouldn't have been the least bit out-of-character if he simply ''re''discovered how to synthesize Jet and then claimed it was his original creation.

* A minor case occurs in the ''VideoGame/Pikmin'' series regarding the Emperor Bulblax. The one that serves as the FinalBoss of the first game is enormous and extremely powerful, but the ones that appear in ''VideoGame/Pikmin2'' are smaller and a significant case of DegradedBoss. ''Both'' versions appear in ''VideoGame/Pikmin4'', with Olimar's notes explaining that the larger version is [[StrongerWithAge older]] and naming this variant Sovereign Bulblax.

* Actually seen to change in ''VideoGame/Sonic3AndKnuckles''. Playing Sonic 3 alone, at the end of the game, the Death Egg gets destroyed and you saved the day. Playing the game locked-on to Sonic & Knuckles in one run-through however will show the Death Egg ''not'' exploding like it did in Sonic 3 alone playthrough, it merely crash lands. You then go after it for the remainder of the game. A by product of the [[OneGameForThePriceOfTwo splitting up of the game into two games]].

* ''Franchise/{{Fallout}}'' has one with the commonly-used chem (in-universe addictive drug) known as "Jet". In ''VideoGame/Fallout2'', set 160 years after the Great War, Jet was invented by the [[TeenGenius Teenage]] InsufferableGenius Myron, a [[HateSink complete scumbag]] hated by ''[[HatedByAll everyone]]'' in the wasteland. In ''VideoGame/Fallout4'' however, Jet is established to have existed since before the Great War, with the logs from one Vault mentioning how it was supplied during construction. Considering how much of a [[SmugSnake smug]], [[AttentionWhore attention]]-[[FakeUltimateHero seeking]] [[CompulsiveLiar constant liar]] Myron was back in ''2'', it wouldn't have been the least bit out-of-character if he simply ''re''discovered how to synthesize Jet and then claimed it was his original creation.

* ''Franchise/{{Fallout}}'' has one with the commonly-used chem (in-universe addictive drug) known as "Jet". In ''VideoGame/Fallout2'', set 160 years after the Great War, Jet was invented by the [[TeenGenius Teenage]] InsufferableGenius Myron, a scumbag hated by ''[[HatedByAll everyone]]'' in the wasteland. In ''VideoGame/Fallout4'' however, Jet is established to have existed since before the Great War, with the logs from one Vault mentioning how it was supplied during construction. Considering how much of a [[SmugSnake smug]], [[AttentionWhore attention]]-[[FakeUltimateHero seeking]] [[CompulsiveLiar constant liar]] Myron was back in ''2'', it wouldn't be the least bit out-of-character if he simply ''re''discovered how to synthesize Jet and then claimed it was his original creation.

* ''Franchise/{{Fallout}}'' has one with the commonly-used chem (in-universe addictive drug) known as "Jet". In ''VideoGame/Fallout2'', set 160 years after the Great War, Jet was invented by the [[TeenGenius Teenage]] InsufferableGenius Myron, a scumbag hated by ''[[HatedByAll everyone]]'' in the wasteland. In ''VideoGame/Fallout4'' however, Jet is established to have existed since before the Great War, with the logs from one Vault mentioning how it was supplied during construction. However, considering how much of a [[SmugSnake smug]], [[AttentionWhore attention]]-[[FakeUltimateHero seeking]] [[CompulsiveLiar constant liar]] Myron was back in ''2'', it wouldn't be the least bit out-of-character if he simply ''re''discovered how to synthesize Jet and then claimed it was his original creation.

* ''Franchise/{{Fallout}}'' has one with the commonly-used chem (in-universe addictive drug) known as "Jet". In ''VideoGame/Fallout2'', set 160 years after the Great War, Jet was invented by the [[TeenGenius Teenage]] InsufferableGenius Myron, a scumbag hated by ''[[HatedByAll everyone]]'' in the wasteland. In ''VideoGame/Fallout4'' however, Jet is established to have existed since before the Great War, with the logs from one Vault mentioning how it was supplied during construction. However, considering how much of a [[SmugSnake smug]],[[FakeUltimateHero attention-seeking]] [[CompulsiveLiar constant liar]] Myron was back in ''2'', it wouldn't be the least bit out-of-character if he simply ''re''discovered how to synthesize Jet and then claimed to have originally created it.

* ''Franchise/{{Fallout}}'' has a one with the commonly-used chem (addictive drug) known as "Jet". In ''VideoGame/Fallout2'', set 160 years after the Great War, Jet was invented by the [[TeenGenius Teenage]] InsufferableGenius Myron, a scumbag character hated by ''[[HatedByAll everyone]]'' in the wasteland. In ''VideoGame/Fallout4'' however, Jet was established to have existed since before the Great War, with the logs from one Vault mentioning how Jet was supplied during its construction. However, considering how much of a [[SmugSnake Smug]] [[FakeUltimateHero attention-seeker]] Myron was back in ''2'', its highly possible (or rather ''completely guaranteed'') that he simply ''re''discovered how to synthesize Jet and took credit for "creating" it.

* The ''Franchise/StarTrek'' [[ContinuityReboot Kelvin Timeline]] a.k.a. the [[Creator/JJAbrams "Abramsverse"]]: ''Film/StarTrek2009'' establishes the new timeline branches off the original "PrimeTimeline" [[note]]Every form of ''Star Trek'' media other than the 2009 film, its sequels, and any related material.[[/note]] after a TimeTravel alteration occurs in the opening scene meaning anything that happened before that alteration is still canonical to the new timeline. While the movies are set in that AlternateTimeline to avert ContinuitySnarl, they added previously unknown information about characters and things in the original one. These include, but are not limited to: The timeline's namesake USS ''Kelvin'', an earlier (''and much simpler'') stardate format, Kirk's parents having been Starfleet officers, [[Film/StarTrekIITheWrathOfKhan Carol Marcus']] father, no official [[Series/StarTrekTheOriginalSeries 5-year missions]] [[Film/StarTrekIntoDarkness prior to 2233]], [[Film/StarTrekBeyond Spock's canonical birthday]] (January 6, 2230), and the whereabouts of the long-lost [[spoiler:''[[Series/StarTrekEnterprise Enterprise]]''-era]] starship ''Franklin'' and its former crew.

* ''Film/TheMummyTrilogy'': ''Film/TheMummyReturns'' reveals Evie is [[spoiler:the {{reincarnation}} of Nefertiri, daughter of Pharaoh Seti I who witnessed her father being murdered by Imhotep and Anck-su-namun and was the one alerted Seti's bodyguards to them as was initially seen in the prologue to ''Film/TheMummy1999'']].

[[folder:Asian Animation]]
* Both the Asian TV spin-offs of the ''Franchise/LiloAndStitch'' franchise--neither of which had any involvement from franchise creator and Stitch's creator and original voice actor Creator/ChrisSanders--do this to Stitch's character by giving him powerful new abilities that were supposedly embedded in him by Jumba all this time, but were never a concern until then.
** The third season of the ''Anime/{{Stitch}}'' anime,[[note]]yes, we know this should go in the above folder, but it's placed here for the sake of keeping the ''Lilo & Stitch'' stuff together[[/note]] ''Stitch! ~Best Friends Forever~'', gives him an inert power cell within him that enhances his strength and abilities.
** In the Chinese animated series ''Animation/StitchAndAi'', Stitch has [[spoiler:a metamorphosis code in his genetic programming that, when activated, causes him to grow into a gigantic monstrosity with four tentacle-like plasma blasters sprouting from his body, allowing him to cause even greater destruction. He also can sprout quills around his neck and a patagium that allows him to glide through the air like a flying squirrel]].
[[/folder]]

* The ''Franchise/StarTrek'' [[ContinuityReboot Reboot movies]] a.k.a. the "Kelvin Timeline" or the [[Creator/JJAbrams "Abramsverse"]]: ''Film/StarTrek2009'' establishes the new timeline branches off the original "prime" timeline after a TimeTravel alteration occurs in the opening scene meaning anything that happened before that alteration is still canonical to the new timeline. While the movies are set in that AlternateTimeline to avert ContinuitySnarl, they added previously unknown information about characters and things in the PrimeTimeline.[[note]]Every form of ''Star Trek'' media other than the 2009 film, its sequels, and any related material.[[/note]] These include, but are not limited to: The timeline's namesake USS ''Kelvin'', an earlier (''and much simpler'') stardate format, Jim Kirk's parents revealed to have been Starfleet officers, who [[Film/StarTrekIITheWrathOfKhan Carol Marcus']] father was, no official [[Series/StarTrekTheOriginalSeries 5-year missions]] having ever occurred [[Film/StarTrekIntoDarkness before 2233]], [[Film/StarTrekBeyond Spock's canonical date of birth]] (January 6, 2230), and the whereabouts of the long-lost [[spoiler:''[[Series/StarTrekEnterprise Enterprise]]''-era]] starship ''Franklin'' and its former crew.

* The ''Franchise/StarTrek'' [[ContinuityReboot Reboot movies]] a.k.a. the "Kelvin Timeline" or the [[Creator/JJAbrams "Abramsverse"]]: ''Film/StarTrek2009'' establishes the new timeline branches off the original "prime" timeline after a TimeTravel alteration occurs in the opening scene meaning anything that happened before that alteration is still canonical to the new timeline. While the movies are set in that AlternateTimeline to avert ContinuitySnarl, they added previously unknown information about characters and things in the prime timeline.[[note]]Every form of ''Star Trek'' media other than the 2009 film, its sequels, and any related material.[[/note]] These include, but are not limited to: The timeline's namesake USS ''Kelvin'', an earlier (''and much simpler'') stardate format, Jim Kirk's parents revealed to have been Starfleet officers, who [[Film/StarTrekIITheWrathOfKhan Carol Marcus']] father was, no official [[Series/StarTrekTheOriginalSeries 5-year missions]] having ever occurred [[Film/StarTrekIntoDarkness before 2233]], [[Film/StarTrekBeyond Spock's canonical date of birth]] (January 6, 2230), and the whereabouts of the long-lost [[spoiler:''[[Series/StarTrekEnterprise Enterprise]]''-era]] starship ''Franklin'' and its former crew.

* The ''Franchise/StarTrek'' [[ContinuityReboot Reboot movies]] a.k.a. the "Kelvin Timeline" or the [[Creator/JJAbrams "Abramsverse"]]: ''Film/StarTrek2009'' establishes the new timeline branches off the original "prime" timeline after a TimeTravel alteration occurs in the opening scene meaning anything that happened before that alteration is still canonical to the new timeline. While the movies are set in that AlternateTimeline to avert ContinuitySnarl, they added previously unknown information about characters and things in the prime timeline.[[note]] Everything other than the 2009 film and its sequels[[/note]] These include, but are not limited to: The timeline's namesake USS ''Kelvin'', an earlier ''and much simpler'' stardate format, Jim Kirk's parents revealed to have been Starfleet officers, who [[Film/StarTrekIITheWrathOfKhan Carol Marcus']] father was, no official [[Series/StarTrekTheOriginalSeries 5-year missions]] having ever occurred [[Film/StarTrekIntoDarkness before 2233]], [[Film/StarTrekBeyond Spock's canonical date of birth]] (January 6, 2230), and the whereabouts of the long-lost [[spoiler:''[[Series/StarTrekEnterprise Enterprise]]''-era]] starship ''Franklin'' and it's former crew.

This pans out usually because the assumed information was ShroudedInMyth or told by an UnreliableNarrator, comments that are taken [[LiteralMinded as literally as possible]] may be better understood FromACertainPointOfView or a playful use of ExactWords.

* ''ComicBook/Agent47BirthOfTheHitman'' is a prequel comic series for the entire Franchise/{{Hitman}} series, so by its nature, it adds a lot more story to flesh out 47, Diana and Grey's backstories:
** Subject 6 was first mentioned in the [[Literature/{{Hitman}} Hitman: Enemy Within]] novel as his first kill and a bully to 47, which this comic changes to be the precise opposite; he was a friend to 47 that wanted to escape The Institute with him. After their unsuccessful raid on the building, Ort-Meyer implants false memories with a serum, and mentions that 6 was his first kill, as the novel describes.

* Since he's immortal and ageless, Makkari of ''Comicbook/TheEternals'' has been retroactively inserted into several points in Marvel history. It turns out that he was the Golden Age speedster heroes Mercury and Hurricane. He also served in the adventurer team, [[Characters/MarvelComicsMonsters the Monster Hunters,]] alongside [[Characters/{{Bloodstone}} Ulysses Bloodstone,]] [[Characters/TheAvengers Doctor Druid,]] [[ActionGirl Zawadi]] of the [[Comicbook/BlackPanther Wakandas]], and [[Characters/MarvelComicsMonsters Gorgilla]]. And he was a member of the pre-Fantastic Four superhero team the [[ComicBook/MarvelTheLostGeneration FirstLine.]]
* The First Line is this. Introduced in ''ComicBook/MarvelTheLostGeneration,'' they're a team of heroes created to fill the [[ComicBookTime ever-widening gap]] between the Golden and Silver Ages in Marvel Comics continuity. The limited series is deliberately written so that the earlier events are set solidly in the forties, fifties, and sixties, but the later events are deliberately left vague, to accomodate the fact that the Fantastic Four's space journey that officially marks the start of the Silver Age keeps getting set later and later. [[HeroicSacrifice Almost all of them died]] ''just before'' the FF's flight (this is not a spoiler; we learn it in their first issue). Most members are original creations, but the roster includes a few previously established characters who would have been active at that time, like [[Comicbook/TheEternals Makkari of the Eternals,]] [[ComicBook/TheInhumans Yeti of the Inhumans]], and (it's at least implied) the [[Characters/MarvelComicsMonsters Monster of Frankenstein.]]
* In ''Comicbook/GhostRider'', a supporting character, known as "a friend," was an analog of Jesus who helped out Johnny Blaze. ''Ghost Rider'' #19 revealed this was a manipulation by Mephisto.

** The mid-'90s comic series ''Comicbook/UntoldTalesOfSpiderMan'' was designed entirely around this trope. They even included a timeline laying out where each story took place in [[ComicBook/TheAmazingSpiderManLeeAndDitko The Amazing Spider-Man]].

* Comicbook/{{Supergirl}}'s real name is Kara Zor-El, survivor of Argo City, and the only child of Zor-El and Alura In-Ze. Much of this detail, however, was added over time: in ''Action Comics #252'', her first appearance, Kara’s home city had no name, nor did her mother, and Kara had no surname. ''Adventure Comics #365'' gave her a surname for first time... ten years after her first appearance!
* Franchise/{{Superman}}'s origin was built up a bit more every time it was told. ''Comicbook/ActionComics'' #1 had a very bare bones origin and explanation for Superman's powers. Superman #1 added some details about Clark's childhood and life before coming to Metropolis. But it was the newspaper strip's third retelling of the origin that added all the now familiar details about Krypton, introduced Jor-L (not El) and Lara, and explained why the infant Kal-L was the only Kryptonian to survive. That version of the story even details how dangerous the spaceflight to Earth was, and how the rocket avoided several near-disasters on the way.
* The IDW Transformers comics first discussed the issue of gender in the Transformers in the ''[[BrokenBase controversial]]'' Spotlight: Arcee. In this, the Transformers are naturally genderless (although using male pronouns) and Arcee is artificially (and against her will) made into the first female. A number of years later, multiple stories revised this, mainly saying that Arcee felt she was born in the wrong body and consented to the operation, and only went berserk due to the lack of aftercare she was given. Ultimately, these revisions expanded the world rather than directly invalidate anything previously said. So everything the characters state in Spotlight: Arcee was correct as far as those characters knew, but was incorrect now that the full history has been revealed.

** ''Film/TheEmpireStrikesBack'' reveals that Vader is Luke's father, after Obi-Wan talked of Vader and his father as two different people in ''Film/ANewHope''. Sources differ on how concrete the idea was from the beginning, it is known early drafts of the script had Anakin Skywalker as a SpiritAdvisor to Luke before facing Vader and even a false line had Vader say "Obi-Wan killed your father." The twist still fundamentally works because Luke had no reason to think otherwise, while other lines about his father [[KuleshovEffect can be viewed in a different light with different context]]. ''Film/ReturnOfTheJedi'' features a tough conversation where Obi-Wan explains his statement was truthful FromACertainPointOfView.

[[folder:Web Comics]]

* Franchise/SpiderMan:

** Hoo boy, where do we start with ''VideoGame/KingdomHearts3DDreamDropDistance''? It turns out Ansem/Xehanort’s Heartless’s actions in the [[VideoGame/KingdomHeartsI first game]], such as making Maleficent gather the Seven Princesses of Heart were to facilitate [[spoiler:the recreation of the χ-blade, rather than obtain Kingdom Hearts]], Xemnas founding Organization XIII was not to obtain hearts of their own while keeping their bodily will, but [[spoiler:to turn them into vessels for Xehanort's heart for again, the χ-blade. Have we mentioned that Xemnas lied to them about their nature as emotionless, heart-lacking beings and that they could eventually grow new ones?]] Oh, again in the first game, that Brown Robed guy who was "Ansem" you met in Destiny Islands? [[spoiler:He is not the Ansem from that instance of time, rather, he time travelled to the past the moment he got word from Xemnas that his task isn't doing so well due to the Organization's members' independence (he originally came from 10 years ago from the events of ''Kingdom Hearts'') making a pitstop to visit his younger, human self to get him gather 13 incarnations of Xehanort throughout time as a backup plan, before traveling into the future setting his sights on Sora and Riku]].

A Revision is when alterations are made to established {{Canon}}, {{Backstory}} and greater lore that was not the believed upon facts at the time the information was previously established. What prevents it from being a {{Retcon}} is that the new details doesn't really contradict what came before, at least from a ''factual'' point of view. It may still contradict the ''spirit'' of the earlier installment.

* ''Franchise/{{Saw}}'': From ''Film/SawIII'' onwards, about every film in the series' original seven-film runtime adds new information to events from the previous ones, mostly in the form of OnceMoreWithClarity flashbacks and plot twists. ''Film/{{Jigsaw}}'' and ''Film/Spiral2021'', on the other hand, only include entirely fresh events from the past that have relation to their respective present storylines.

* ''VideoGame/AliceMadnessReturns'' has one, where [[spoiler:it is revealed that the cat never knocked over a lamp, and the cause of the fire was something completely different. The cutscene in the original game is now implied to be Alice's attempt to understand the past she has forgotten.]]