The Lysithian Republic was the largest government of the Sagitarrean Arm of the Milky Way, ruled by a highly hierarchical and centralized administration located on Lythos Alpha. These administrators ruled as the proxies of the true Lysithians who lived on Lysithia itself. In 2002 of Timeline Three, the Lysithian Republic was conquered by the Bootians. The Republic was composed of more than 50 worlds, with diverse species including the Flem, Broknars, Szorbs, Cryglars, Yasgoths and Tularemians.