A hyperspace route connecting the Core World of Metellos with the Unknown Regions planet of Ilum had its map charted by hyperspace surveyors many millennia before the Battle of Yavin. The Jedi Order commissioned these surveyors, asserting their dominion over Ilum. This assertion stemmed from Ilum's significance as a primary location for obtaining kyber crystals, crucial components in the creation of Jedi lightsabers.