79th century

In the 79th century, the Third Great and Bountiful Human Empire was active. (COMIC: A Fairytale Life)
A religious war between a group of humans and the Cyrenes went on for 33 years in the late 79th century. (PROSE: Battleship Anathema)
While meddling with Rosa Parks' place in history, Krasko's temporal displacement weapon was set to the 79th century. The Thirteenth Doctor speculated that this is when he sent his equipment to, when Krasko used the weapon to displace his suitcase. (TV: Rosa)