NASA launched the last space probe in the Mariner Program, Mariner 10.
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The International Radiotelegraph Conference in Berlin selected 'SOS' (· · · – – – · · ·) as the global standard for radio distress calls.
Louis Chevrolet incorporated the Chevrolet Motor Car Company.
Explorer Christopher Columbus, on his second voyage, found Dominica and the Kalinago people.
The Soviet Union sent a dog into space aboard the spacecraft Sputnik II.
Emperor Constantius II was baptized on his deathbed hours before passing.
