When did the flappers start?

It began in the 1920's. The term referres to young women who wore short skirts, bobbed their hair, listened to the new Jazz music, and flaunted their disdain for what was then considered acceptable behavior. The flappers were seen as brash for wearing excessive makeup, drinking, treating sex in a casual manner, smoking, driving automobiles, and otherwise flouting conventional social and sexual norms.