How do you “discover” a country that was crawling with people when you got there?
Its a reletive thing. That’s simply the way it works out when one culture is simple and static and the other is sophisticated and dynamic. Columbus discovered America for the people who were making history. It’s never been about who was here or who actully came here first.
A husband can “discover” his wife’s affair, even though the two participants already knew about it.