Cheers! 80th anniversary of repeal of Prohibition By: CNBC.com News December 05, 2013 at 14:58 PM EST Today marks the 80th anniversary of the repeal of Prohibition. The Twenty-First Amendment to the Constitution was ratified on December 5, 1933. Read More >> Related Stocks: Boston Beer Company Brown-Forman Constellation Brands Diageo Plc ADR Molson Coors Brewing