USA HISTORY

Detailed explanation-1: -2020 Census South Harlem had 20, 000 to 29, 999 Black residents, 5, 000 to 9, 999 Hispanic residents, 10, 000 to 19, 999 White residents, and fewer than 5, 000 Asian residents.

Detailed explanation-2: -By 1900, tens of thousands lived in Harlem. The mass migration of blacks into the area began in 1904, due to another real estate crash, the worsening of conditions for blacks elsewhere in the city, and the leadership of black real estate entrepreneurs including Phillip Payton, Jr.

Detailed explanation-3: -In the 1920s and 1930s, Harlem became a symbol of the African American struggle for civil and economic equality while emerging as a flourishing center of black culture, art and music.