1920s prohibition posters: In 1920, Prohibition goes into effect with the passage of the 18th Amendment. Organized crime started to gain momentum as Mobsters such as Al Capone and Dutch Schultz began importing illegal alcohol and selling it to a public more than willing to break the law. An age of outlaw glamour and speakeasies continued for almost a decade.
"Instead of giving money to found colleges to promote learning, why don't they pass a constitutional amendment prohibiting anybody from learning anything? If it works as good as the Prohibition one did, why, in five years we would have the smartest race of people on earth.", Will Rogers
The Prohibition was started in 1920, and lasted until 1933. Because of the many bootleggers became popular. Also so did "speak easies" or hidden bars. Because of the Prohibition the mob started in America which consisted of smuggling alcohol. It slowly died away when it was started.