According to stuff in the now-defunct EU, humans originated on Coruscant, along with the Taung -- who later were driven off by the humans and became the Mandalorians. I posit urther that one of the ancient races in the Star Was prehistory came to this galaxy and swiped some humans about 50,000 years ago or more because they were hardy and would make good slave labor, and they were settled on Coruscant.
The humans on other worlds like Alderaan, Corellia, Chandrila, and so forth are all just humans who moved out and colonized the galaxy after the ancient empires went extinct.
We know there's cross-traffic, then and now. The species that E.T. was was in the Republic Senate in Episode I. Threepio and Atroo are heiroglyphs in a Hovitos temple in Raiders o the Lost Ark. Filmmaker's nods or not, that still makes it part of the canon. So E/T/'s people were apparently intergalactic explorers, not just interstellar. And the droids made it here sometime in the more recent past, and were apparently worshipped
here too. I like the notion that the films are a dramatization of historical records extracted from Artoo, and that the droids are now being studied by Top Men.
I also wrote a short story years ago where the Arthur legend is basically a story of three Jedi Knights who escaped the Purge, but crashed here. Merlin was brain damaged and lost the ability to tell reality from his visions and wandered off. Nimue tracked him and eventually had to imprison him. She retreated to their ship to live in solitude, while the third, Uther, had gone out and made a life for himself. He did send his son to Nimue to retrieve his lightsaber (Excalibur). By this point the depression the ship had made had filled with water, and the ship could only be accessed through a top hatch, with a small island helping disguise it. Oh, and I suppose I should mention the ship was named
Avalon. It's fun to tie Star Wars in with our own myths and legends.
--Jonah
