Inventor Thomas Savery patented the first steam engine in England.
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A peace agreement was signed between King John of England and Prince Louis VIII of France, marking the end of the Siege of Roche-au-Moine, France.
North and South Vietnam were formally reunified after more than twenty years of war.
The first Walmart store opened in Rogers, Arkansas.
The International Astronomical Union named Pluto's fourth and fifth moons Kerberos and Styx.
Charles J. Guiteau shot US President James A. Garfield in Washington, D.C.
