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American football

American football, referred to as football in the United States and Canada and also known as gridiron, is a team sport played by two teams of eleven players on a rectangular field with goalposts at each end. The offense, which is the team controlling the oval-shaped football, attempts to advance down the field by running with or passing the ball, while the defense, which is the team without control of the ball, aims to stop the offense's advance and aims to take control of the ball for themselves. The offense must advance at least ten yards in four downs, or plays, and otherwise they turn over the football to the defense; if the offense succeeds in advancing ten yards or more, they are given a new set of four downs. Points are primarily scored by advancing the ball into the opposing team's end zone for a touchdown or kicking the ball through the opponent's goalposts for a field goal. The team with the most points at the end of a game wins.

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American football is the result of several important divergences of football and rugby associations; especially the changes in the rules instituted by Walter Camp, a graduate of Yale University considered the "Father of American football". Among the important changes are the introduction of the rules of the down and the line of scrimmage.1 2 3 At the end of the XIX century and beginning of the XX, the evolution of the game by university trainers like Eddie Cochems, Amos Alonzo Stagg, Knute Rockne, and Glenn "Pop" Warner helped take advantage of the recent introduction of the advance pass. The popularity of college football grew, as it became the dominant version of the sport in the United States during the first half of the 20th century. Bowl games, a tradition of college football, attracted a national audience of college teams. Driven by fierce rivalries, college football is still a big draw in the United States.

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5 Fascinating Facts about American Football

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American Football was invented on November 12, 1892. First known as the American Professional Football Association (APFA) and later renamed the NFL 1922.
The origin of professional football dates back to 1882, with the $ 500 contract of William "Pudge" Heffelfinger to play a game with the "Allegheny Athlectic Association" against the Pittsburgh Athletic Club. In 1920, the American Professional Football Association was formed. This league changed its name to the National Football League (NFL) two years later, and with time it became the main league of American football.

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The history of American football can be traced back to the initial versions of rugby. Both sports have their origin in variations of football that were played in Great Britain in the mid-nineteenth century. In these versions of soccer, the ball was kicked towards a post or was run with it to cross a line.
The origin of professional football dates back to 1882, with the $ 500 contract of William "Pudge" Heffelfinger to play a game with the "Allegheny Athlectic Association" against the Pittsburgh Athletic Club. In 1920, the American Professional Football Association was formed. This league changed its name to the National Football League (NFL) two years later, and with time it became the main league of American football. Mainly a sport of the industrial cities of the Midwest of the United States, professional football eventually became a national phenomenon. The growing popularity of football dates back to the 1958 NFL Championship, a game that has been called the "best game ever played". A rival league of the NFL, the American Football League (AFL), began to be played in 1960. The pressure that it placed in the top league led to a merger between the two leagues and the creation of the Super Bowl, which has been become the most watched television event annually in the United States.4