USA HISTORY

Detailed explanation-1: -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-2: -The settlement of Harlem was formally incorporated in 1660 under the leadership of Peter Stuyvesant. During the American Revolution, the British burned Harlem to the ground. It took a long time to rebuild, as Harlem grew more slowly than the rest of Manhattan during the late 18th century.

Detailed explanation-3: -Many older and well-off residents moved to Harlem to escape the crowding of downtown Manhattan and experience the beauty of Harlem. Harlem was annexed into New York City in 1873 and from 1878-1881 the railroad started reaching 129th street and by 1886 it traveled even further allowing more people access to the area.

Detailed explanation-4: -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.

Detailed explanation-5: -By 1920, some 300, 000 African Americans from the South had moved north, and Harlem was one of the most popular destinations for these families.