Politics

Soon after blacks began to move into Harlem, the community became known as "the spiritual home of the Negro protest movement." The NAACP became active in Harlem in 1910 and Marcus Garvey's Universal Negro Improvement Association in 1916.Activist A. Philip Randolph lived in Harlem and published the radical magazine The Messenger starting in 1917. It was from Harlem that he organized the Brotherhood of Sleeping Car Porters. W. E. B. Du Bois lived and published in Harlem in the 1920s, as did James Weldon Johnson and Marcus Garvey.The earliest activism by blacks to change the situation in Harlem itself grew out of the Great Depression, with the "Don't Buy Where You Can't Work" movement. This was the ultimately successful campaign to force retail shops on 125th Street to hire black employees. Boycotts were originally organized by the Citizens' League for Fair Play in June 1934 against Blumstein's Department Store on 125th Street. The store soon agreed to more fully integrate its staff.

http://www.jcu.edu/harlem/Religion/page_1.htm
http://citizendia.org/Harlem