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 It was ratified on January 16, 1919 and repealed by the 21st Amendment in 1933.
The Eleventh Amendment, or Amendment XI of the United States Constitution is an Amendment that talks about the sovereign immunity. The Eleventh Amendment was the first Amendment to the United States Constitution after the Bill of Rights. It was put into the Constitution on February 7, 1795.