In 1910 football teams were penalized 15 yards for an incompleted forward pass.
63
During WWII, because a lot of players were called to duty, the Pittsburgh Steelers and Philadelphia Eagles combined to become The Steagles.
113
Three consective strikes in bowling is called a turkey.
30
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
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.
3
The practice of identifying baseball players by number was started by the Yankees in 1929.
64
In 1998, Serena and Venus Williams said they could beat any man ranked 200 or worse in a game of tennis. Karsten Braasch, ranked 203, accepted the challenge and easily beat them, 6-1, 6-2.
16
The fastest red card in football/soccer history was 2 seconds when Lee Todd was sent off for foul language after he exclaimed "f**k me, that was loud" after the starting whistle.
11