The Sith were the most infamous of all dark side religions, and the members of the cult were often seen as the pinnacle of power within the dark side. However, the Sith would always be characterized by two key attributes: their lust for absolute power and their desire to destroy their ancient foes, the Jedi Order. The rise of a new leader, or Dark Lord, would often cause drastic reorganizations in the cult. This religious order would survive in many different incarnations throughout galactic history. Following centuries of interbreeding and mixing of cultures between the aliens and the exiles, the Sith would no longer be identified by their race, but by their dedication to the ancient Sith philosophy. However, they had been defeated and subsequently exiled from known space, which led to their discovery of the Sith species.

The Dark Jedi, who embraced in to the dark side, using its power to manipulate life, which started the Hundred-Year Darkness.

These Dark Jedi had once been members of the Jedi Order, a monastic Force religion dedicated to peace through the use of the light side of the Force. The term 'Sith' originally referred to a species of aliens native to the planets Korriban and Ziost, who were later enslaved and ruled by exiled Dark Jedi from the Galactic Republic. The Sith, also referred to as the Sith Order was a sect of Force-sensitives who utilized the dark side of the Force. We have power because we are Sith.' ―Sith Proverb

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