America officially began to withdraw from the World Health Organization.
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Pope Clement VI issued two papal bulls stating that Jews were not to blame for the Black Death.
The Nigerian Civil War began when Nigerian troops invaded Biafra.
The US adopted the name 'dollars' and started using decimal coinage.
The American Declaration of Independence was publicly released in the Pennsylvania Evening Post.
The Cosmic Call 2 mission occurred at the Eupatoria Planetary Radar in western Crimea.