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Emoji Calendar
March 5
What happened on this day
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Westinghouse air brake patented
154 years ago
George Westinghouse receives a US patent in 1872 for the air brake that finally made fast-moving trains safe to stop.
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Boston Massacre
256 years ago
British soldiers fire on a Boston crowd in 1770, killing five; Paul Revere's engraving of the scene does more for the cause than the shooting itself.
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