Say the word “prohibition” and most Americans will think of the time when, in 1919, the 18th Amendment of the Constitution was ratified, prohibiting the “manufacture, sale or transportation of intoxicating liquors within … the United States.” The 21st Amendment, ratified in 1933, repealed Prohibition. The period when alcohol was banned spawned its own subculture of speakeasies, bootlegging and backyard stills.