20,000 BBY

The year 20,000 before the Battle of Yavin (BBY) marked the end of the Expansionist Era and the beginning of the Great Manifest Period in the Galactic Republic. Now approximately five thousand years old, the Republic began a period of rapid expansion out from the Core Worlds and into the areas of Wild Space "east" of the galactic center. Other cultures, such as the Etti, had already begun Rimward migration. Further development and exploration took place in the Core as well. The planet Metellos, suffering from a lack of trade and overpopulation, began its attempt to blaze a new hyperlane connecting it to both Coruscant and points westward to alleviate these issues. Once completed, the route stretched from Coruscant to Orooturoo.

Text and facts from the “20,000 BBY/Legends” article on Wookieepedia, licensed under CC BY-SA 3.0. Modified for this site.