- the period that in the U.S. extended roughly from the Armistice of 1918 to the stock-market crash of 1929 and was notable for increased prosperity, liberated or hedonistic social behavior, Prohibition and the concomitant rise in production and consumption of bootleg liquor, and the development and dissemination of jazz and ragtime and associated ballroom dances.
- (esp in the US) the period between the end of World War I and the beginning of the Depression during which jazz became popular
