Prehistoric events are followed by "B1," indicating that they predate Year 1 of the given calendar system used in the Attack on Titan world. Historical events and story events preceded by "c." are approximations based on given information and are not to be considered exact dates, and may be subject to change as new information is given.
History: {| class="aotable" The Tybur family fabricates the story of a Marleyan man named Helos to instigate the Eldian in-fighting and serve as a hero for the oppressed people of Marley. Karl Fritz gathers most of the Fritz royal family to Paradis Island, Eldia's last remaining undisputed territory, and moves the capital to that island, abandoning the conflict between the eight other Titan houses. He also invites Asians from the Shogun clan of Hizuru.
Story: {| class="aotable" Marcel is eaten by Ymir's Titan after the first night of their journey, and Ymir regains her humanity after having stolen his Jaw Titan power. Keith Shadis steps down from his position as Commander of the Survey Corps after a devastating expedition with fewer than twenty survivors, passing the rank of command on to Erwin Smith. Before leaving for the interior, Grisha Yeager promises his son Eren that he will one day show him the secrets kept within the basement of their home.
Source: Timeline, available under CC BY-SA 3.0.