I believe both originated and evolved in the United States during the late 1940s and early 1950s
Well, this could be interpreted in a general view. A good way I've found to understand history especially is to almost interprete right now. I know this is not the answer but it is helpful. How can different view cause conflict? Simple you want to fight for your views because you believe they are right.
Blacks were able to serve in all branches of the Army except for the aviation units. The government made no provision for military training of black officers and soon created segregated training camps for that purpose. Disheartened, blacks protested against this discriminatory practice.
Settlers from The ... early American hero by others, John ... been ten years old at the time. ... for saints, but our President [Edward Wingfield] would never have been.