Palpatine was the culmination of the Sith, everything they'd worked for over a millennia. But he was also a Sith heretic, as ...
After Return of the Jedi in 1983, there was nothing for nearly 20 years, when the prequel trilogy came along. The third (and ...
The Star Wars Legends timeline gave the Sith a detailed history spanning thousands of years before Star Wars: Episode I - The Phantom Menace and over a hundred years after Return of the Jedi.