On this date in 1919, the thirty-sixth state to ratify the Eighteenth Amendment gave the required two-thirds majority, and the stage was set for the thirteen years of stupid known as Prohibition.
You'll note, however, a couple of interesting factoids. Apparently in the early 1900's, Congress still believed in paying some respects to the form of the Constitution. These days, if they don't like something, they just ban it by legislative fiat and don't worry about the fact that nowhere in the Constitution are they given that power; back then they had the common courtesy to get the Constitution amended.
You'll also note that they didn't even ban the consumption or possession of alcohol; perhaps that was considered beyond the scope of legal authority, too. Merely the import, export, sale, or transportation is outlawed by the Eighteenth Amendment.