CMU TD-American football

American football, was born in the US, hands, feet and elliptical balls played a team game. Is referred to only as soccer in the United States and Canada. [1] Australia and New Zealand is referred to as the gridiron.

The first birth of football starts with the primary school children want to play rugby to an elementary school teacher. Change the rules in rugby, facilitates children's comprehension and also protective chest armor to protect their children from contact with hard inserts pants including helmets and protective pads. Then spread out before developing sports in high school, then started to play in college. Subsequently established professional leagues.