After slavery ended, millions of African-Americans moved from the rural south to large cities in the north. They were seeking better economic opportunities and an escape from racial terrorism and segregation. This movement was called the Great Migration. As demand for industrial labor increased, many African-Americans took factory jobs in cities like Detroit, Chicago, Philadelphia and New York. With these jobs came a new black middle class.
During the Great Migration, many African-Americans settled in Harlem, a neighborhood in New York City. At the time, most landlords refused to rent to black people. But when an economic downturn in the 1890s led to high vacancy rates in the area, property owners started selling and renting to African-Americans. By 1930, the population of Harlem was more than 70% black.
Why did millions of African-Americans relocate during the Great Migration?