Where had most african americans come from in the harlem of the 1920s?

South

Explanation:

Most of the African Americans that participated in the Harlem Renaissance of the 1920s came from the South. This is because most of them were trying to escape the oppressive and discriminatory environment of the Jim Crow laws and segregation. They believed that African Americans had better opportunities in the North, where discrimination was less common and less tolerated.

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-he wants to reinforce that students and teachers still have their first amendment rights during the school day.