History ShoutOut / HarryPotterAndTheMethodsofRationality

** mentions Venus Fire Traps from SuperMarioBrothers 3

** "[[ChroniclesOfTheKencyrath That which can be destroyed by the Rowling should be.]]"
** We learn that [[TabletopGame/DungeonsAndDragons mindflayers]] were exterminated by HaroldShea. This matches with the original making allusions with historical wizards.

** Lunch in the Great Hall of Hogwarts on April 16, 1992 consists of [[BabylonFive breen and Roopo balls]], the latter of which were also served at Mary's Place in chapter 26. ''Both'' items, in Babylon 5, were noted as being indistinguishable from Swedish meatballs, of which every culture with whose cuisine G'Kar was familiar had a version.

** ''Occlumency: The Hidden Arte'' is not a text that appears in the HP canon, but it was featured in [[HarryPotterAndTheNightmaresOfFuturesPast this fanfic]] before it turned up here.

** [=McGonagall=] discusses the recent disastrous employments of two Defense professors, [[AnitaBlake Professor Blake]] (who was caught with THREE fifteen-year-olds in a broom closet) and [[Series/BuffyTheVampireSlayer Professor Summers]] (who failed to teach material correct in the ''Harry Potter'' universe).

** There is also a mention of the possibility of [[EternalSunshineOfTheSpotlessMind losing every single life memory involving the colour blue]]…

** Harry quotes WinstonChurchill.

** In reference to [[http://www.obscurusbooks.org/html/Hayseed/Thursdays/index.html this fanfic]], Harry says "And if someone bumps into me the Time-Turner will not break and will not trap the whole castle of Hogwarts in an endlessly repeating loop of Thursdays."

* Chapter 108: The Defense Professor is [[AVeryPotterMusical a particularly good finder]].

** Quotes the first two lines of TomLehrer's song "Be Prepared," a callback to Harry quoting the song to explain why he needs to be CrazyPrepared to [=McGonagall=] in Chapter 6 (see also SecondVerseCurse below).

** Harry's phrasing when talking to Hermione about [[spoiler:whether or not they'll ultimately fall in love]] evokes [[Creator/BazLuhrmann]]'s song "[[http://www.metrolyrics.com/everybodys-free-to-wear-sunscreen-lyrics-baz-luhrmann.html Everybody's Free (To Wear Sunscreen)]]," and he manages to mention that he isn't wearing sunscreen himself.

** Harry's phrasing when talking to Hermione about [[spoiler:whether or not they'll ultimately fall in love]] evokes [[Creator/BazLuhrman]]'s song "[[http://www.metrolyrics.com/everybodys-free-to-wear-sunscreen-lyrics-baz-luhrmann.html Everybody's Free (To Wear Sunscreen)]]," and he manages to mention that he isn't wearing sunscreen himself.

** Harry's phrasing when talking to Hermione about [[spoiler:whether or not they'll ultimately fall in love]] evokes Wear Sunscreen, and he manages to mention that he isn't wearing sunscreen himself.

** Alastor mentions the name of Bellatrix Black's mother as Walpurga, suspiciously similar to the witch Walpurgisnacht from [[Anime/PuellaMagiMadokaMagica Madoka Magicka]]. As Walpurgisnacht is the name of the annual meeting of witches in german folklore it might also be in regards to that.

** Professor Quirrell refers to "ritual to summon Death itself" that uses two of the components of the Seething Death wizardry from Literature/TheLegendsOfEthshar, and also shares another unfortunate characteristic with that uncontrollable weapon of mass destruction:

** [[Literature/TheLegendsOfEthshar A "ritual to summon Death itself"]]

** Mary's Room, where Harry and Professor Quirrell have been having lunch, is in [[Literature/CallahansCrosstimeSaloon Mary's Place, owned by "Jake,"]] which suggests that the "huge genial Irishman" whose entrance allows Harry to slip out the door unnoticed is probably Mike Callahan. Also an [[http://www.reddit.com/r/HPMOR/comments/19w4am/today_i_discovered_that_marys_room_is_an_obscure/c8s9em7 unintentional]] reference to the thought experiment [[http://en.wikipedia.org/wiki/Marys_room "Mary's room"]].

** The cube saying "blorple, blorple, blorple" in Dumbledore's office is a reference to the Infocom text-adventure game "Spellbreaker".

** Harry makes an analogy involving an invisible dragon that is taken almost verbatim from "[[Creator/CarlSagan The Demon-Haunted World]]".

** Dumbledore taps his fingers [[PocketDimension through]] a black plate inscribed with the word "Leliel", a reference to the 12th Angel from ''Anime/NeonGenesisEvangelion''.

** Quotes the first two lines of TomLehrer's song "Be Prepared", a callback to Harry quoting the song to explain why he needs to be CrazyPrepared to [=McGonagall=] in Chapter 6 (see also SecondVerseCurse below).

** Harry's password includes the Marx brothers' "[[ThePasswordIsAlwaysSwordfish Swordfish]]", "[[Literature/TheLordOfTheRings friend]]" from the ''Lord of the Rings'', and "[[Literature/TheLordOfTheRings melon]]", the Elvish word for "friend".

** Former students named [[Literature/VorkosiganSaga Miles Naismith]] and [[Literature/EnchantedForestChronicles Cimorene Linderwall]] are mentioned, as is an evil "Professor [[Series/BarneyAndFriends Barney]]".[[note]]Yudkowsky confirms that it's a reference to the [[DarkFic demonic Jihad to Destroy Barney]] version.[[/note]]

--> '''Harry''': "Sir Gareth, owner of a transportation company that won the 19th-century [[invoked]][[ShipToShipCombat shipping wars]]... monopoly on [[OT3 oh-tee-threes]]... I see".

** [[WesternAnimation/SouthPark Tenorman's family chili]] and [[Film/SoylentGreen green lentil soup]] (served with [[AGlassOfChianti a glass of]] ''[[TheSilenceOfTheLambs Chianti]]'', natch).

-> So my version of the thought, Draco, is that when we go out into the stars, we might find other people there. And if so, they certainly won't look like we do. There might be things out there that are grown from crystal, or big pulsating blobs...

** Dumbledore mentions to magical prodigy from Wizarding history named [[Literature/TheBlackCompany Dorotea Senjak]].

** ''Literature/TheBlackCompany''.

** [[Film/WillyWonkaAndTheChocolateFactory Mr. Avery]] -- maybe; Avery actually is the name of a Death Eater in canon.

** The crystal creatures and blobs are the other two species that humans run into in EY's novella ThreeWorldsCollide.

** "[[Literature/Quarantine I just recite to myself, over and over, until I can choose sleep: It all adds up to J. K. Rowling.]]"

** [[RogerZelazny "Mabra, brahoring, mabra"]]

** [[ReturnOfTheJedi "a furry creature like a small child, holding a peculiar flat spear"]]. (The small furry creature may be a [[Literature/LittleFuzzy Fuzzy]] and not an [[ReturnOfTheJedi Ewok]]; the "peculiar flat spear" is more distinctive of Fuzzies than Ewoks.)

** Dumbledore apparently owns a [[Literature/{{Lensman}} Lens of Civilization]], the HolyGrail (specifically, the version of it featured in ''Film/IndianaJonesAndTheLastCrusade''), and ''Film/TheMalteseFalcon''.

** The prisoner saying "I'm not serious" is either a reference to ''Film/TheDarkKnight'', a hint about Sirius Black's current fate ("I'm not Sirius"), or both.

** Alastor mentions the name of Bellatrix Black's mother as Walpurga, suspiciously similar to the witch Walpurgisnacht from [[Anime/PuellaMagiMadokaMagica Madoka Magicka]], though that may be canon.