The northern Manhattan neighborhood of Harlem was meant to be an upper-class white neighborhood in the 1880s, but rapid overdevelopment led to empty buildings and desperate landlords seeking to fill them.

In the early 1900s, a few middle-class Black families from another neighborhood known as Black Bohemia moved to Harlem, and other Black families followed. Some white residents initially fought to keep African Americans out of the area, but failing that many whites eventually fled.

Outside factors led to a population boom: From 1910 to 1920, African American populations migrated in large numbers from the South to the North, with prominent figures like W.E.B. Du Bois leading what became known as the Great Migration.

In 1915 and 1916, natural disasters in the south put Black workers and sharecroppers out of work. Additionally, during and after World War I, immigration to the United States fell, and northern recruiters headed south to entice Black workers to their companies.

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.