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 It was ratified on January 16, 1919 and repealed by the 21st Amendment in 1933.
Even then, new additions to the Constitution â such as the 18th Amendment which outlawed the sale of alcohol and started the Prohibition â were subject to repeal. Now, the document possesses 27 amendments and 7 articles.