The Chicago Assembly, chartered in 1932 is one of the oldest and most prestigious social clubs in Cook County. The all- male membership consists of successful men from all walks of life. All events are hosted by membership and to attain membership, one must be sponsored by a member. The Chicago Assembly is known by its Holiday Ball held each year in December. This event is a strictly formal. Men, black tuxedos, black bow tie, Women formal floor length dresses.