The U.S. Congress passes the Volstead Act over President Woodrow Wilson's veto, paving the way for Prohibition to begin the following January.

The National Prohibition Act, known informally as the Volstead Act, was an act of the 66th United States Congress designed to execute the 18th Amendment which established the prohibition of alcoholic drinks. The Anti-Saloon League's Wayne Wheeler conceived and drafted the bill, which was named after Andrew Volstead, chairman of the House Judiciary Committee, who managed the legislation.

Thomas Woodrow Wilson was the 28th president of the United States, serving from 1913 to 1921. He was the only Democrat to serve as president during the Progressive Era when Republicans dominated the presidency and legislative branches. As president, Wilson changed the nation's economic policies and led the United States into World War I. He was the leading architect of the League of Nations, and his stance on foreign policy came to be known as Wilsonianism.

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 Prohibition was formally introduced 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 Prohibition ended with the ratification of the Twenty-first Amendment, which repealed the Eighteenth Amendment on December 5, 1933.