When looking at all the characters, locations, events, creatures, technology and whatever in the Star Wars universe depicted in movies, novels, comics, video games etc., then do you think it's all real or assume Star Wars is just fiction coming from Lucas' and various others' minds? Realistically, the Star Wars galaxy (Skyriver, as the Nagai and myself call it) cannot exist within this universe, because of different physics, which must be the same everywhere in a universe. Considering the hypothesis of more than one universe, maybe an infinite number of universes, it could be possible that the Star Wars lore is real. And George Lucas found a crashed satellite containing historical records in the garden in front of his house. If we ignore different physical laws and say Skyriver is being located in this universe, most of the Star Wars stories happened ~185 million years ago. Earth has been settled by Humans descending from Coruscant.