1 billion to 100 billion
Deep in the Corellian sector, Altawar was discovered early in the history of the Galactic Republic. Following the establishment of the Corellian Empire, the native Corragut were considered the subjects of Corellia and were subject to Corellian rule.
Following the Mandalorian victory at Duro during the Mandalorian Wars, the Sith Empire of Darth Revan was able to take control of the sector, including Altawar. Eventually liberated from Sith control, the world and the sector were loyal members of the Republic for the rest of its history, though remaining isolationists. Following the disastrous Clone Wars, the world was forced under the Imperial rule of the Galactic Empire. A haven for members of the Rebel Alliance, the sector was seized by Imperial warlords in an attempt to squash the Alliance's growing power. However, the Corellian sector took the destabilizing post-Endor era as a time to isolate once more and cast the Empire out.
While initially remaining isolated from the New Republic, the sector was drawn in, while Altawar had very little involvement in galactic affairs. Following the Yuuzhan Vong War, the sector moved for independence once again, resulting in the Second Galactic Civil War. Defeated, the member worlds of the sector remained under control of the Galactic Alliance until 137 ABY when Darth Krayt established his Empire across the galaxy.