The Sith are the enemies of the Jedi and the main Star Wars villains. However, in the movies he does not recount his origin, which is unknown to the general public. Where did they come from? Why was it thought that they were extirpated in Episode I?

The Siths were the race that lived on the planet Korriban Originally the Sith were a race that lived on the planet Korriban. They were red-skinned humanoid beings very sensitive to the Force. They were a violent race and performed numerous rituals and sacrifices that maintained their strong connection with the Dark Side of the Force.