Yeah but look at the crusades, jihads, etc...some just a few hundred years ago, but forgotten in most people's minds. People's memories get wiped pretty dang quick. Heck, we're running out of Holocaust survivors & the number of Holocaust deniers seems to be growing by the day :thumbsdown:
Plus there's this gem:
https://twitter.com/VeryLonelyLuke/status/682131630308388864
A few hundred years is different from less than 30. And its a technologically advanced galaxy, so there would be records. Maybe the only thing that could make sense is if the Emperor did the equivalent of book burning in an attempt to change history, but there are many alien races that live hundreds of years, so it wouldnt be easy. And you still have Vader walking around force choking people. The timeline seems like there should be at least 1000 years between Revenge of the Sith and A New Hope if someone as practical as Han dismisses the force as a hokey religion.
I was watching the Clone Wars TV show over the last couple weeks, and even Greedo was alive prior to the Jedi being wiped out. So was Baas and Boba. Too many people in Han's circles witnessed the Jedi and the force first hand.