The household wrench was invented by boxing heavyweight champion Jack Johnson in 1922.
51
Tug of War was an Olympic event between 1900 and 1920.
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The practice of identifying baseball players by number was started by the Yankees in 1929.
64
No high jumper has ever been able to stay off the ground for more than one second.
78
People in nudist colonies play volleyball more than any other sport.
67
The first baseball caps were made of straw.
226
A 'face-off' in hockey was originally called a 'puck-off'.
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