The American Negro Exposition, also known as the Black World's Fair and the Diamond Jubilee Exposition, was a world's fair held in Chicago from July until September in 1940, to celebrate the 75th anniversary of the end of slavery in the United States at the conclusion of the Civil War in 1865.

James Aloysius Farley was an American politician who simultaneously served as chairman of the New York State Democratic Committee, chairman of the Democratic National Committee, and Postmaster General under President Franklin Roosevelt, whose gubernatorial and presidential campaigns were run by Farley.