The Sith, also known as Red Sith or Sith Purebloods, were a species of red-skinned humanoids that originated on the world of Korriban, before adopting Ziost as their second homeworld. Distinct for their bone spurs, facial tentacles, genetic predispositions toward both left-handedness and the dark side of the Force, the Sith species created an empire first ruled by kings and later by Dark Lords. After the arrival of the Exiles from the Hundred-Year Darkness on Korriban in 5900 BRR, interbreeding and genetic manipulation altered the Sith species, and over the generations the original species became a hybrid race of Sith and human heritage.