North and South Vietnam were formally reunified after more than twenty years of war.
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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.
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.
The Salvation Army was founded in London by Methodist preacher William Booth and his wife, Catherine Booth.
The first Walmart store opened in Rogers, Arkansas.
