Coca-Cola patents its iconic contoured bottle, Al Capone leaves prison, Luke and Laura get married, Harry Potter makes his movie debut, and Prince William and Kate Middleton announce their engagement, all on this day.
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NASA
1965: The Soviet Union launches the Venera 3 space probe toward Venus. The probe would crash on Venus on March 1, 1966, becoming the first spacecraft to reach the surface of another planet. Although it was successful in reaching the planet, the probe's communications systems failed before it could return any information about the planet.