Chicago, Century of Progress Exposition, 1933. Century-of-Progress Fair at Chicago in 1933, hearing, 71st Congress, 3d session, on H. J. Res. 448, for participation of United States in Century of Progress (Chicago World's Fair Centennial Celebration) to be held at Chicago, Ill., in 1933, authorizing appropriation therefor, and for other purposes, Jan. 15, 1931.