In the late 19th and early 20th centuries, African American organized crime emerged following the first and second large-scale migration of African Americans from the Southern United States to major cities of the Northeast, Midwest, and later the West Coast. In many of these newly established communities and neighborhoods, criminal activities such as illegal gambling, speakeasies and were seen in the post-World War I and Prohibition eras. Although the majority of these businesses in African American neighborhoods were operated by African Americans, it is often unclear the extent to which these operations were run independently of the larger criminal organizations of the time.

Harlem is a neighborhood in Upper Manhattan, New York City. It is bounded roughly by the Hudson River on the west; the Harlem River and 155th Street on the north; Fifth Avenue on the east; and Central Park North on the south. The greater Harlem area encompasses several other neighborhoods and extends west and north to 155th Street, east to the East River, and south to Martin Luther King Jr. Boulevard, Central Park, and East 96th Street.