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- American_football abstract "American football (referred to as football in the United States and Canada, also known as gridiron elsewhere) is a sport played by two teams of eleven players on a rectangular field with goalposts at each end. The offense, the team with control of the oval-shaped football, attempts to advance down the field by running with or passing the ball, while the team without control of the ball, the defense, aims to stop their advance and take control of the ball for themselves. The offense must advance at least ten yards in four downs, or plays, or else they turn over the football to the opposing team; if they succeed, 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.American football evolved in the United States, originating from the sports of association football and rugby football. The first game of American football was played on November 6, 1869, between two college teams, Rutgers and Princeton, under rules based on the association football rules of the time. During the latter half of the 1870s, colleges playing association football switched to the Rugby Union code, which allowed carrying the ball. A set of rule changes drawn up from 1880 onward by Walter Camp, the \"Father of American Football,\" established the snap, eleven-player teams, and the concept of downs; later rule changes legalized the forward pass, created the neutral zone, and specified the size and shape of the football.American football as a whole is the most popular sport in the United States; professional football and college football are the most popular forms of the game, with the other major levels being high school and youth football. As of 2012, nearly 1.1 million high school athletes and 70,000 college athletes play the sport in the United States annually. The National Football League, the most popular American football league, has the highest average attendance of any sports league in the world; its championship game, the Super Bowl, ranks among the most-watched club sporting events in the world, and the league has an annual revenue of around US$10 billion.".
- American_football category Ball_game.
- American_football category Team_sport.
- American_football equipment Football_(ball).
- American_football equipment Football_helmet.
- American_football equipment Knee_pad.
- American_football equipment Padding.
- American_football teamSize "11".
- American_football thumbnail Larry_Fitzgerald_catches_TD_at_2009_Pro_Bowl.jpg?width=300.
- American_football wikiPageExternalLink ifaf.info.
- American_football wikiPageExternalLink nfl-360.com.
- American_football wikiPageExternalLink nfl.com.
- American_football wikiPageExternalLink mp73006300.
- American_football wikiPageExternalLink v=onepage&q&f=false.
- American_football wikiPageID "18951490".
- American_football wikiPageLength "103926".
- American_football wikiPageOutDegree "332".
- American_football wikiPageRevisionID "707239041".
- American_football wikiPageWikiLink 1869_New_Jersey_vs._Rutgers_football_game.
- American_football wikiPageWikiLink 1876_college_football_season.
- American_football wikiPageWikiLink 1880_college_football_season.
- American_football wikiPageWikiLink 1925_NFL_Championship_controversy.
- American_football wikiPageWikiLink 1958_NFL_Championship_Game.
- American_football wikiPageWikiLink 1964_American_Football_League_season.
- American_football wikiPageWikiLink 1970_NFL_season.
- American_football wikiPageWikiLink 2009_Pro_Bowl.
- American_football wikiPageWikiLink 2011_NFL_season.
- American_football wikiPageWikiLink 2012_UFL_season.
- American_football wikiPageWikiLink AFL–NFL_merger.
- American_football wikiPageWikiLink All-America_Football_Conference.
- American_football wikiPageWikiLink Allegheny_Athletic_Association.
- American_football wikiPageWikiLink American_Broadcasting_Company.
- American_football wikiPageWikiLink American_Football_Conference.
- American_football wikiPageWikiLink American_Football_League.
- American_football wikiPageWikiLink American_Professional_Football_League.
- American_football wikiPageWikiLink American_exceptionalism.
- American_football wikiPageWikiLink American_football_at_the_1932_Summer_Olympics.
- American_football wikiPageWikiLink American_football_positions.
- American_football wikiPageWikiLink American_football_strategy.
- American_football wikiPageWikiLink Arena_Football_League.
- American_football wikiPageWikiLink Arena_football.
- American_football wikiPageWikiLink Ashgate_Publishing.
- American_football wikiPageWikiLink Association_football.
- American_football wikiPageWikiLink Atlantic_Europe.
- American_football wikiPageWikiLink Australian_rules_football.
- American_football wikiPageWikiLink BBC_America.
- American_football wikiPageWikiLink Ball_game.
- American_football wikiPageWikiLink Baltimore_Colts_(1947–50).
- American_football wikiPageWikiLink Blocking_(American_football).
- American_football wikiPageWikiLink Bowl_Alliance.
- American_football wikiPageWikiLink Bowl_Championship_Series.
- American_football wikiPageWikiLink Bowl_Championship_Series_controversies.
- American_football wikiPageWikiLink Bowl_Coalition.
- American_football wikiPageWikiLink Bruise.
- American_football wikiPageWikiLink Canadian_Football_League.
- American_football wikiPageWikiLink Canadian_football.
- American_football wikiPageWikiLink Captain_(sports).
- American_football wikiPageWikiLink Category:1869_introductions.
- American_football wikiPageWikiLink Category:American_football.
- American_football wikiPageWikiLink Category:Ball_games.
- American_football wikiPageWikiLink Category:Football_codes.
- American_football wikiPageWikiLink Category:Gridiron_football.
- American_football wikiPageWikiLink Category:Sports_originating_in_the_United_States.
- American_football wikiPageWikiLink Center_(gridiron_football).
- American_football wikiPageWikiLink Chain_crew.
- American_football wikiPageWikiLink Chronic_traumatic_encephalopathy.
- American_football wikiPageWikiLink Cleveland_Browns.
- American_football wikiPageWikiLink Coin_flipping.
- American_football wikiPageWikiLink College_Football_Playoff.
- American_football wikiPageWikiLink College_football.
- American_football wikiPageWikiLink Columbia_University.
- American_football wikiPageWikiLink Commissioner.
- American_football wikiPageWikiLink Comparison_of_American_and_Canadian_football.
- American_football wikiPageWikiLink Comparison_of_American_football_and_rugby_union.
- American_football wikiPageWikiLink Concussion.
- American_football wikiPageWikiLink Concussions_in_American_football.
- American_football wikiPageWikiLink Contact_sport.
- American_football wikiPageWikiLink Continental_Indoor_Football_League.
- American_football wikiPageWikiLink Conversion_(gridiron_football).
- American_football wikiPageWikiLink Cornerback.
- American_football wikiPageWikiLink Cortland_Finnegan.
- American_football wikiPageWikiLink Defensive_back.
- American_football wikiPageWikiLink Defensive_end.
- American_football wikiPageWikiLink Delay_of_game.
- American_football wikiPageWikiLink Dementia.
- American_football wikiPageWikiLink Demonstration_sport.
- American_football wikiPageWikiLink Down_(gridiron_football).
- American_football wikiPageWikiLink EFAF_Atlantic_Cup.
- American_football wikiPageWikiLink EFAF_Challenge_Cup.
- American_football wikiPageWikiLink EFAF_Cup.
- American_football wikiPageWikiLink Eastern_United_States.
- American_football wikiPageWikiLink Eskimo.
- American_football wikiPageWikiLink Eurobowl.
- American_football wikiPageWikiLink Europe.
- American_football wikiPageWikiLink European_Football_League.
- American_football wikiPageWikiLink Fair_catch.
- American_football wikiPageWikiLink Fantasy_football_(American).
- American_football wikiPageWikiLink Field_goal.
- American_football wikiPageWikiLink Field_goal_range.
- American_football wikiPageWikiLink Flag_football.