The first Harry Potter book, “Harry Potter and the Philosopher’s Stone,” hit the shelves in the UK.
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Dr. Zabdiel Boylston of Harvard University gave the first smallpox inoculations in Boston following America's biggest outbreak.
Ice Age: Continental Drift premiered in Buenos Aires, Argentina.
Same-sex marriage became legal in all 50 states.
Charlie Chaplin's silent movie 'The Gold Rush' was released.
The US Navy's Vanguard SLV-2 launch vehicle failed to reach Earth's orbit.
