system
Given the following post, respond as if you're commenting on Reddit:
human
[Star Wars] What time period was Palpatine referring to in ep. 3 when he said "once more the sith will rule the Galaxy"?

Is whatever time period he's referring to even canon anymore?
gpt
Obviously *a* period when the Sith ruled over the galaxy is canon since the movies themselves refer to such a time existing. The details are not currently canon, but I'd say it's a fair bet that it was shortly before the thousand-year period of stability in the Republic that is established to have been ongoing prior to the Clone Wars.

What *is* canon is that at least six thousand years ago they had control of Coruscant and built a shrine at the future site of the Jedi Temple-- so that could also be the time Sidious was referring to.