A PeriodFic usually takes the characters of any fandom and places them in a different time period than the setting of the story. It may involve time travel, but most of the time it doesn't.

May or may not include the UsedFuture.

[[IThoughtItMeant Not about]] [[AvertedTrope averting]] NoPeriodsPeriod. Though we'll probably need a trope for that someday. Also not a fanfic about the full stop.

Compare {{Elseworld}} and SettingUpdate, although most of these are Setting ''Down''dates.
* ''[[http://princesspandaart.deviantart.com/art/Blood-of-Beauty-Prolouge-648402186 Blood of Beauty]]'' takes ''VideoGame/SonicTheHedgehog'' into 1880s American, turns several characters into vampires, and dabs in ParanormalRomance.
* ''[[http://www.fanfiction.net/s/67364/1/Rendezvous_with_Fate_An_Alternate_Universe_Fanfic Rendezvous With Fate]]'' by [=iCe=] relocates ''Manga/RanmaOneHalf'' to feudal Japan, and casts Akane as the time-traveling widow of Ryouga, who has accidentally come back in time and possessed the body of Ranma's estranged wife, Kodachi.
* ''[[http://www.fanfiction.net/s/2531597/1/Golden_Day Golden Day]]'' by Gondolier moves the plot of ''Literature/ThePhantomOfTheOpera'' to Hollywood in the Roaring Twenties -- with good period research, no less.
* There was once a sudden explosion of Cartman/Kyle ''WesternAnimation/SouthPark'' fics set in UsefulNotes/NaziGermany, with Kyle in a concentration camp, hiding in Stan's family's attic, or otherwise persecuted, and Cartman as a sadistic Hitler Youth.
* ''Scion: The Last Aeromancer'' is a story on Website/FanFictionDotNet which turns ''WesternAnimation/AvatarTheLastAirbender'' into a Western fantasy while keeping the plot mostly intact. However, the author hasn't updated for a very long time, so it's sadly a DeadFic.
* ''[[http://www.fanfiction.net/s/6102321/1/NGE_A_Century_Apart NGE: A Century Apart]]'' asks the question, "What would happen if ''Anime/NeonGenesisEvangelion'' took place 100 years earlier than it did in canon?"
* ''[[http://web.archive.org/web/19991006034910/http://solo.abac.com/moonromance/o/matmon.htm Matrose Mond]]'' by David H. Olivier sets the action of ''Anime/SailorMoon'' in UsefulNotes/NaziGermany.
* The ''Series/DoctorWho'' fanfic collection ''[[http://www.whofic.com/series.php?seriesid=2676 Really Stretching UNIT Dating]]'' has stories placing the Brigadier and UNIT in the 1790s, 1920s, 2020s, Ancient Greece and 12th century.
* In universe, TabletopGame/TwilightSparklesSecretShipficFolder has "Hearthswarming: A Detailed Account".
* Fanfic/Batman1939 explores Batman's fight to clean up Gotham during UsefulNotes/WorldWarII. While Batman himself ''was'' around in 1939, the fic includes characters and concepts that were not part of the Batman mythos in UsefulNotes/TheGoldenAgeOfComicBooks.