The major cultural difference was the interaction between the whites and blacks and whites in the North and in the South. The north had abolished slavery a lot before the South and racism was not that deep in the North. that is the reason why many blacks from the South migrated to the North because there they were not segregated like that in the South. Emitt Till came from the North and therefore for him not talking to a white woman was an unknown law. He had been doing same in the North but nothing happened but here he was killed.