Cheetahs were raced at Romford greyhound stadium in 1937!
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Most NASCAR Teams use nitrogen in their tires instead of air.
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At 120 miles per hour, a Formula One car generates so much downforce that it can drive upside down on the roof of a tunnel.
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The Stanley Cup originally was only seven and a half inches high.
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The practice of identifying baseball players by number was started by the Yankees in 1929.
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