The International Astronomical Union named Pluto’s fourth and fifth moons Kerberos and Styx.
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North and South Vietnam were formally reunified after more than twenty years of war.
Inventor Thomas Savery patented the first steam engine in England.
Martin Luther was almost struck by lightning and became a monk.
The first Walmart store opened in Rogers, Arkansas.
The Salvation Army was founded in London by Methodist preacher William Booth and his wife, Catherine Booth.