The eighteenth amendment to the US Constitution, prohibiting the manufacture and sale of intoxicating beverages. In effect from 1920 thru 1933 and enforced under provisions governed by the Volstead Act. Various states had prohibition laws of their own, and momentum to national prohibition had built thruout the teens, with the austerity of WW1 giving the movement the final push it needed to get over the political top.
Supporters called it "The Noble Experiment," but in reality it led to an explosion of crime and vice, as organized gangs controlled the importation and distribution of bootleg beverages, and as the criminal tide escalated, public sentiment turned against the law. The amendment was officially repealed on December 6, 1933.