Rwanda, Burundi, Jamaica, and Trinidad and Tebogo were admitted to the United Nations.
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The US spacecraft, Voyager, took the first-ever photograph of the moon and Earth together from space.
During his fourth and final voyage, Christopher Columbus arrived in Costa Rica.
Colonel Joseph William Kittinger II completed the first-ever trans-Atlantic crossing in a helium balloon.
The Teutonic Knights defeated the Polish army in the Battle of Chojnice.
The second Theatre Royal, Covent Garden in London, opened.
