The household wrench was invented by boxing heavyweight champion Jack Johnson in 1922.
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Tug of War was an Olympic event between 1900 and 1920.
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Each year, 30,000 people are seriously injured by exercise equipment.
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The Stanley Cup originally was only seven and a half inches high.
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Kite flying is a professional sport in Thailand.
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Prior to 1900, prize fights lasted up to 100 rounds.
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In 2011, two men paraglided from the summit of Mt. Everest, arriving at a village in 42 minutes and avoiding the dangerous conventional 3 day descent.
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