Washington became the 42nd state to join the United States of America.
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NASA launched the Gemini program's tenth and final crewed spacecraft, Gemini 12.
German polymath Gottfried Wilhelm Leibniz demonstrated integral calculus for the first time.
Danish astronomer Tycho Brahe witnessed the supernova SN 1572.
The Manchester Ship Canal started its construction in Eastham, England.
Christopher Columbus discovered Sint Maarten in the West Indies.
