The greatest impact of the Spanish on the Native Americans was A. The spreading of Christianity
B. The increase of Native American independence
C. An increased food supply
D. The spread of diseases

Contributing factors  leading  to the harlem renaissance were the great migration of african americans to northern cities, which concentratedambitious  people in places where they could encourage each  other, and the first world war, which had created new industrial work opportunities for tens of thousands of people.