American football, referred to simply as football in the United States and Canada and also known as gridiron football, [nb 1] is a team sport played by two teams of eleven players on a rectangular field with goalposts at each end.

American football, referred to as football in the United States and Canada and also known as gridiron, [nb 1] is a team sport. It is played by two teams with 11 players on each side. American football is played with a ball with pointed ends.

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.

The history of American football can be traced to early versions of rugby football and association football.

2025年2月10日 · American football is the version of the sport of football that evolved from English rugby and soccer (association football). American football, played with 11 on each side, originated in North America, primarily in the United States, where it …

The origins of professional American football date back to 1892, with the $500 contract signed by William "Ponch" Heffelfinger to play a game for the Allegheny Athletic Association against the Pittsburgh Athletic Club.

The National Football League (NFL) is an American football league. There are 32 teams in the league. The league is one of the major professional sports leagues of the United States and Canada. The players are among the highest-paid athletes in the world. A league is a competition between a number of teams.

2024年12月27日 · American football - NFL, Rules, Strategy: Connected to a national audience through television—and under no obligation to build character or maintain educational standards—professional football became the most spectacular success story in the world of American sport over the second half of the 20th century.

2022年3月8日 · 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.

2024年1月24日 · American Football, a sport deeply rooted in history, holds a special place in the nation’s heart. In this deep-dive of American football history. Learn who invented American Football, how it grew and what makes it popular today!