Prohibition in the United States to other issues, such as Mormon polygamy and the temperance movement. On November 18, 1918, prior to ratification of the Eighteenth Amendment, the U.S. Congress passed the temporary Wartime Prohibition Act, which banned the sale of alcoholic beverages having an alcohol content of greater than 1.28%. (This act, which had been intended to save grain for the war effort, was passed after the armistice ending World War I was signed on November 11, 1918.) The Wartime Prohibition Act took effect June 30, 1919, with July 1, 1919 becoming known as the "Thirsty-First". The U.S. Senate proposed the Eighteenth Amendment on
Twenty-first Amendment to the United States Constitution proposed amendment was adopted on December 5, 1933. It is the only amendment to have been ratified by state ratifying conventions, specially selected for the purpose. All other amendments have been ratified by state legislatures. It is also the only amendment that was approved for the explicit purpose of repealing a previously existing amendment to the Constitution. The Twenty-first Amendment ending national prohibition became officially effective on December 15, though people started drinking openly before that date. The various responses of the 48 states is as follows: The following states ratified the amendment: Ratification was completed on December 5, 1933.