Washington became the 42nd state to join the United States of America.
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Christopher Columbus discovered Sint Maarten in the West Indies.
NASA launched the Gemini program's tenth and final crewed spacecraft, Gemini 12.
Inventor Alan Clark was granted his patent for the telescope.
British writer J. R. R. Tolkien, famous for writing The Lord of The Rings fantasy novels, published his second volume of the series, The Two Towers.
Poland became an independent country.
