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As a result, position naming on defense has become less confusing and more informative. However, position naming on offense, while tending to eliminate obsolete distinctions, has also tended to hide important ones and confuse others. [citation needed] Offenses and defenses continued to adapt to the increases in forward passing favored by the rules.
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 substitutions", meaning that they may change any number of players during any "dead ball" situation.
This category is designed to hold historical material about the sport of American football, which forms part of the wider study of sports history. There is a great deal of historical material in general American football articles which are not included here, such as articles about individual teams and competitions.
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The modern history of American football can be considered to have begun after the 1932 NFL Playoff Game, which was the first American football game to feature hash marks, the legalization of the forward pass anywhere behind the line of scrimmage, and the movement of the goal posts back to the goal line; it was also the first indoor game since 1902.
The early history of American football can be traced to early versions of rugby football and association football.Both games have their origin in varieties of football played in Britain in the mid–19th century, in which a football is kicked at a goal or run over a line, which in turn were based on the varieties of English public school football games.
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 ...
The defensive end position (DE) in a base 4–3 defense The Philadelphia Eagles jersey of Reggie White, widely considered one of the best defensive ends in the history of the National Football League, on display at the Pro Football Hall of Fame in Canton, Ohio