American football is a kind of sport played with an oblong-shaped ball. In several other parts of the world, especially in European areas, association football is a game played using a spherical ball. Both sports are often called football. The association game is a popular sport in the world. In American English, soccer is the term used to define the association version.
The American sport, sometimes called gridiron, was first played around 1869. Games similar to this have been played at American universities since the early nineteenth century. Walter Camp, nicknamed the father of the American version, helped advance the sport. In 1920, the United States professional association was formed. It was later renamed the National Football League, or NFL. In 1960, the American Football League, AFL, emerged as the rival league of the NFL.
The American game field includes end lines, sidelines, goal lines, yard lines, goal posts and an end zone. Teams have 53 players, which are separated into defense, offense and special teams. Only 11 players are allowed out on the field during a play at a time. Games are four quarters long. Each quarter lasts for 15 minutes. Players must wear protective equipment during play. They pass and carry the game ball using their hands.
Teams advance by running or passing. During offensive possessions, a team is given four attempts, or downs, to advance 10 yards. A down ends if a player is tackled, a ball or a player with it is out of bounds or the ball touches the ground before being caught. A touchdown is worth six points, a field goal is worth three points and a safety is worth two points.
Military manuals from around 3 BC in China show early versions of the sport. The Football Association was created in 1863. Some years later, in 1904, FIFA, or the international federation for the association sport was created.
In the association game rules, goalkeepers are the only players allowed to touch a ball with their hands and arms. Other players can use their head, torso, feet and other body parts to move it forward. Player uniforms consist of shorts, shirt, socks and shin guards. Game fields are between 100 and 110 meters long and 64 and 75 meters wide.
Each game has two 45-minute periods and a break in between. In this sport, the game is either in or out of play. It is considered in play until a referee stops the game or if the game ball goes out of boundary lines. The ball is moved through the field by passing, dribbling with feet and legs or taking shots at the goal.
The American sport, sometimes called gridiron, was first played around 1869. Games similar to this have been played at American universities since the early nineteenth century. Walter Camp, nicknamed the father of the American version, helped advance the sport. In 1920, the United States professional association was formed. It was later renamed the National Football League, or NFL. In 1960, the American Football League, AFL, emerged as the rival league of the NFL.
The American game field includes end lines, sidelines, goal lines, yard lines, goal posts and an end zone. Teams have 53 players, which are separated into defense, offense and special teams. Only 11 players are allowed out on the field during a play at a time. Games are four quarters long. Each quarter lasts for 15 minutes. Players must wear protective equipment during play. They pass and carry the game ball using their hands.
Teams advance by running or passing. During offensive possessions, a team is given four attempts, or downs, to advance 10 yards. A down ends if a player is tackled, a ball or a player with it is out of bounds or the ball touches the ground before being caught. A touchdown is worth six points, a field goal is worth three points and a safety is worth two points.
Military manuals from around 3 BC in China show early versions of the sport. The Football Association was created in 1863. Some years later, in 1904, FIFA, or the international federation for the association sport was created.
In the association game rules, goalkeepers are the only players allowed to touch a ball with their hands and arms. Other players can use their head, torso, feet and other body parts to move it forward. Player uniforms consist of shorts, shirt, socks and shin guards. Game fields are between 100 and 110 meters long and 64 and 75 meters wide.
Each game has two 45-minute periods and a break in between. In this sport, the game is either in or out of play. It is considered in play until a referee stops the game or if the game ball goes out of boundary lines. The ball is moved through the field by passing, dribbling with feet and legs or taking shots at the goal.
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