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
Prohibition in the United States Amendment went into effect in January 1920, many of the upper classes stockpiled alcohol for legal home consumption after Prohibition began. They bought the inventories of liquor retailers and wholesalers, emptying out their warehouses, saloons, and club storerooms. President Woodrow Wilson moved his own supply of alcoholic beverages to his Washington residence after his term of office ended. His successor, Warren G. Harding, relocated his own large supply into the White House after inauguration. After the Eighteenth Amendment became law the United States embraced bootlegging. In just the first six months of 1920 alone, the federal government opened 7,291 cases