Their origins are largely unknown, even to the Chiss themselves, though some scientists believe they are descended from an isolated Human colony lost to time. Even then, the Chiss remain an enigmatic, secretive Species. Originating on the cold world of Csilla in The Unknown Regions, the Chiss are largely unknown to the greater galactic community until five years after the Battle of Yavin, when a Chiss known as Grand Admiral Thrawn rallies the Imperial remnants and goes to war against the New Republic. Reference Book: Star Wars Saga Edition Legacy Era Campaign Guide
