The Prohibition era was the period from 1920 to 1933 when the United States prohibited the production, importation, transportation and sale of alcoholic beverages. The alcohol industry was curtailed by a succession of state legislatures, and finally ended nationwide under the Eighteenth Amendment to the United States Constitution, ratified on January 16, 1919. Prohibition ended with the ratification of the Twenty-first Amendment, which repealed the Eighteenth Amendment on December 5, 1933.