Was called the "Black Wall Street" back in the 20's....
The stories...go this way and that way..from what I've read.
It's hard to know the truth now.
I can truthfully say...from a born and raised SoCal boy...I never saw as much overt ignorance with race...until I moved to OK.
FWIW-
I saw racism in Buffalo and Boston. I don't see it in Tulsa.