NASA launched the last space probe in the Mariner Program, Mariner 10.
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Martha Hughes Cannon of Utah became the first elected female State Senator in the United States.
The Soviet Union sent a dog into space aboard the spacecraft Sputnik II.
Queen Elizabeth II inaugurated the flow of oil from the UK's first-ever oil pipeline.
The One World Trade Center opened on the original World Trade Center site.
Emperor Constantius II was baptized on his deathbed hours before passing.
