The "Roaring Twenties" is a term for the 1920s, when the American economy was booming. This was the first time in which ordinary working and middle-class people knew about the existence of the stock market and invested in it. Millions of people put their savings into stocks. One of the high-flyers was "Radio" (Radio Corporation of America) going from about $15 in 1927 to a peak of $114 in 1929, to crash to less than $3 a share in 1933. Despite prohibition, people went to illegal "speakeasies" to drink, financing an underworld and making celebrities of gangsters like [[Al Capone]]. It was a period of licentiousness. "Flappers" wore short skirts and danced in ways that showed off their bodies. This period was also known as the "Jazz Age," a term associated with [[F. Scott Fitzgerald]] and his novels of the period. New York's "Tin Pan Alley" thrived, and composers like [[George Gershwin]] and [[Irving Berlin]] became popular. Frederick Lewis Allen's nonfiction book, ''Only Yesterday,'' paints a vivid picture of the 1920s.