The practice of identifying baseball players by number was started by the Yankees in 1929.
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People in nudist colonies play volleyball more than any other sport.
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Babe Ruth wore No. 3 because he batted third.
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The first baseball caps were made of straw.
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A 'face-off' in hockey was originally called a 'puck-off'.
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In England, there's a phenomenon called the "half-time kettle effect" where power use surges at half-time during England's matches in the World Cup as everyone turns on their tea kettles at the same time.
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The household wrench was invented by boxing heavyweight champion Jack Johnson in 1922.
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