It takes 3,000 cows to supply the NFL with enough leather for a year's supply of footballs.
73
In 1910 football teams were penalized 15 yards for an incompleted forward pass.
63
There is a growing sport in Berlin and London called Chess Boxing. Players alternate between a round of chess and a round of boxing until one is declared winner either by checkmate, KO, or technical stoppage.
8
The household wrench was invented by boxing heavyweight champion Jack Johnson in 1922.
51
There is a sport called Banzai Skydiving. You throw the parachute out of the airplane first and then jump after it.
17
Cheetahs were raced at Romford greyhound stadium in 1937!
60