Alsakan was once an ecumenopolis in the Alsakan system in the Core Worlds, on the Perlemian Trade Route. The planet was originally a Killik colony before 30,000 BBY when they were taken to the Unknown Regions, possibly by the Celestials in 30,000 BBY. At least one Killik from Alsakan became a user of the Dark Side and was able to escape the world and flee to Sarafur. From 17,000 BBY until 3,017 BBY, Alsakan tried to usurp Coruscant's predominance seventeen times, causing the Alsakan Conflicts between the planets' holdings in the Expansion Region.