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American football rules. Gameplay in American football consists of a series of downs, individual plays of short duration, outside of which the ball is or is not in play. These can be plays from scrimmage – passes, runs, punts or field goal attempts (from either a place kick or a drop kick) – or free kicks such as kickoffs and fair catch kicks.
The first American football game was played on November 6, 1869, between two college teams, Rutgers and Princeton, using rules based on the rules of soccer at the time. A set of rule changes drawn up from 1880 onward by Walter Camp , the "Father of American Football", established the snap , the line of scrimmage , eleven-player teams, and the ...
The official playing field in Canadian football is larger than the American, and similar to American fields before 1912. The Canadian field of play is 110 by 65 yards (100.6 by 59.4 m), compared to 100 by 531⁄3 yards (91.4 by 48.8 m) in American football. Since 1986, Canadian end zones are 20 yards (18.3 m) deep while the American end zones ...
American football positions. A diagram showing an I formation on offense and a 4-3 formation on defense. In American football, the specific role that a player takes on the field is referred to as their "position". Under the modern rules of American football, both teams are allowed 11 players [1] on the field at one time and have "unlimited free ...
The following is a list of common and historically significant formations in American football. In football, the formation describes how the players in a team are positioned on the field. Many variations are possible on both sides of the ball, depending on the strategy being employed. On offense, the formation must include at least seven ...
The history of American football can be traced to early versions of rugby football and association football.Both games have their origin in multiple varieties of football played in the United Kingdom in the mid-19th century, in which a football is kicked at a goal or kicked over a line, which in turn were based on the varieties of English public school football games descending from medieval ...
IFAF World Championship. American football is a form of gridiron football and the most popular sport in the United States. In the United States, the game is most often referred to as simply "football". Football is played in leagues of different size, age and quality, in all regions of the country.
1. The field of play; a football field. 2. A generalized term for American, Canadian, arena, and other related forms of football, especially in contrast with rugby football (rugby union, rugby league) and association football (soccer).