Galaxy's dark age

The Dark Age is a period of time around one thousand years prior to the Clone Wars. The "Old Republic" as it is known reigned as the galactic government during this period. It was during this period that the Sith where defeated by the Jedi Order though this defeat was partially caused by the Sith Order's own infighting. However while the Sith where defeated, the Old Republic also fell and was reformed into the Galactic Republic.

One Sith Lord Darth Bane survived the destruction of the Sith Order and reformed it by establishing the "Rule of Two" where only two Sith Lords; a master and an apprentice would exist at any one time. Darth Bane would take n apprentice to pass on his knowledge and train in the ways of the Force in secret whom would carry on Darth Bane's legacy after his death until the Sith could take their revenge against the Jedi and regain rule of the galaxy once more.