1. I’m going to start with the third draft of the ANH screenplay. The opening crawl says, “For over a thousand years, generations of JEDI KNIGHTS were the guardians of peace and justice in the galaxy. Now these legendary warriors are all but extinct. One by one they have been hunted down and destroyed by the sinister agents of the Emperor: the DARK LORDS OF THE SITH.” Here, there are many Dark Lords of the Sith serving the Emperor, and Vader is their leader. Obi-Wan mentions that Vader was low-ranked among the Sith last time they saw each other and is surprised that Vader is now the leader. 2. The fourth draft removes all the Sith except for Vader, adds that The Emperor “made” Vader a Sith Lord and that Vader is “all that’s left of their (the Jedi’s) wizard ways. Instead of the opening crawl introducing the Jedi, Obi-Wan does, and “a thousand years” is changed to “a thousand generations”. 3. The revised fourth draft removes the line about The Emperor “making Vader a Sith Lord” and replaces “wizard ways” with “religion”. Shortly after ANH was released, Lucas told Charles Lippincott that Vader is the last of the Sith. My conclusion from the “Emperor made him a Sith Lord” line is that “the Sith” were supposed to be Jedi who pledged themselves to the Emperor when the Jedi Purge began. 4. ESB and ROTJ make it clear that the Emperor is strong in the Dark Side, but none of the screenplays call him a “Sith” or a “Lord”. In 1981, Lucas told Kasdan that the Emperor was never a Jedi and that he hid his evilness from the Jedi until it was too late to stop him. 5. TPM tells us that the Sith were thought to have gone “extinct” 1000 years before the movies. The novelization and interviews with Lucas explain that the Sith began as a Jedi splinter sect and that the Rule of Two was created by “Darth Bane” to prevent them from being wiped out by infighting. 6. In AOTC, Palpatine says that the Republic “has stood for 1000 years” and Sio Bibble says that “There hasn’t been a full-scale war since the formation of the Republic”. Although “1000 years” might seem to contract “over a thousand generations”, it does match the third draft of ANH and the date that the Sith went “extinct”, implying that the Republic was formed as a result of whatever the Sith did 1000 years before the movies. 7. In ROTS, Sidious says, “Once more, the Sith will rule the galaxy,” and in the screenplay, Obi-Wan says, “The Sith rule the galaxy, like before the Republic.” This implies that the Sith ruled the galaxy before going “extinct” and that the Republic was probably formed to prevent anyone like the Sith from ruling the galaxy again.