Sith
The Sith is an organization in the fictional Star Wars universe. It is an ancient interstellar kratocratic government led by those who seize power through force or cunning. Sith characters are frequently depicted as amoral, sadistic and violent. The Sith Order established several Sith Empires and have undergone numerous incarnations throughout their existence. The Banite Sith Order, as depicted in the Original trilogy and Prequel trilogy, was founded by Darth Bane; this sith dynasty lasted between circa "1,000 BBY-4 ABY"; (Before Battle of Yavin/After Battle of Yavin; "0 ABY" being the destruction of the first Death Star) ending with the death of Palpatine and Darth Vader. During this "Banite dynasty" there existed only two sith members at a time: a master and an apprentice.
Overview
The Sith are dedicated to sith philosophy and to mastering the dark side of the Force. The Sith members, known as Sith Lords or Dark Lords of the Sith, traditionally use the title Darth-prefix before their Sith name. The Sith are the archenemies of the quasi-religious Jedi and, like them, their main weapon is the lightsaber. While Jedi are subservient to the Force and aid the Galactic Republic by utilizing the Force for peace, knowledge and defense, the Sith prefer to exploit the Force for power, aggression or personal gain; desires that inevitably led to both imperial conquest and their own self-destruction.