The first and most prominent Trianon opened December 6, 1922 in the Woodlawn neighborhood of Chicago, Illinois, and was marketed as "The World's Most Beautiful Ballroom".
[1] The main ballroom was 100 by 140 feet and was reported to accommodate 3,000 dancers, and the venue was one of the few places in Chicago that was air-conditioned at that time.
[1] The Trianon's size, opulence and success led to other ballrooms to be similarly named in identifying with the original.
Cleveland, Philadelphia, Seattle, Toledo, and the Los Angeles suburb of South Gate each had a Trianon Ballroom.
Great entertainment came from the Dorsey Brothers, Benny Goodman, Glenn Miller, and Toledo's own Helen O'Connell.