system
Given the following post, respond as if you're commenting on Reddit:
human
[Star wars] How old is galactic civilization?

Are there written records, ancient data pads? Rock carvings cause it seems even when you back only a few thousand years before the battle of Yavin you have old the republic which apparently is 10k years old. Do we know anything of what happened before then.
gpt
Well, we know the Jedi have policed the Republic for "a thousand generations." Assuming they mean something like a human generation here on modern-day Earth, that's 25,000-30,000 years.

A few centuries before that it was Xim's Empire (Xim the Despot is basically this galaxy's version of Alexander the Great). Hyperspace travel existed as much as 30k years BBY. Coruscant has been industrialized for at least 100k years BBY. 

Obviously that's a long time, longer than anatomically modern humanity has even existed. It's hard to get into all the stuff that happened in that time.