Strawburry17 is here with your Adventure Time Lore!br Subscribe for more Lore: See what's next on Maker.TV ► Follow Lore on Twitter: br Written by Mylobr br Voiced by Strawburry17:br br Animated by TerminalMontage:br br Adventure Time History:br br Adventure Time takes place after a nuclear war, “The Great Mushroom War”, leaves most of human civilization in ruins in the “Land of Ooo”. Those who survived included magical beings, the undead, and those already without souls, like Business Men. After the Great Mushroom War, the nuclear fallout created a bunch of mutants who began creating new civilizations in the Land of Ooo among the toxic waste and cityscapes up in the sky.