Photo: US Postal Service. Pluto - Explored! In 2006, NASA placed a 29-cent 1991 Pluto: Not Yet Explored stamp in the New Horizons spacecraft. In 2015 the spacecraft carried the stamp on its history-making mission to Pluto and beyond.
The 18th Amendment to the U.S. Constitution banned the manufacture, sale, and transportation of alcohol (i.e. the beginning of Prohibition). It was ratified on January 16, 1919 and repealed by the 21st Amendment in 1933.
Twenty-first Amendment An article to the United States Constitution that repealed the Eighteenth Amendment and ended the period of Prohibition in 1933. Eighteenth Amendment An article to the United States Constitution that prohibited commercial alcohol sales and consumption beginning in 1920.