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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German Federal Archive/Wikimedia Commons
1940: In occupied Poland during World War II, the Nazis close off the Warsaw Ghetto from the outside world. More than 400,000 Jews from the area around Warsaw were forced to live in an area of little more than one square mile. At least 254,000 residents were sent from the ghetto to the Treblinka extermination camp over the course of two months in the summer of 1942.