1) Prohibition was enacted in 1919 by the 18th Amendment to ban the production and sale of alcohol nationwide. However, it was impossible to enforce as bootleggers produced and imported illegal alcohol.
2) Organized crime rose as gangsters like Al Capone made huge profits smuggling liquor into the U.S. Illegal taverns also sold liquor in every town.
3) Prohibition was repealed in 1933 by the 21st Amendment as it failed to achieve its goals and even increased crime and corruption. Enforcement proved impossible and it was widely flouted.