Prohibition was the act of making alcohol illegal in the United States from 1920 to 1933, as mandated by the 18th Amendment. The temperance movement in the late 19th century pushed for prohibition as a way to reduce alcohol-related issues like domestic abuse. However, prohibition failed to stop alcohol consumption and led to the rise of organized crime rings that bootlegged alcohol. Speakeasies, underground bars that served alcohol, proliferated during this time. Famous gangsters like Al Capone gained power and wealth through bootlegging and other illegal activities related to prohibition. By the 1930s, opposition to prohibition grew and it was repealed by the 21st Amendment in 1933.