Wikipedia on Football

The free kicks are the kickoff (which starts the first and third quarters and overtime and follows a try attempt or a successful field goal), and the safety kick, which follows a safety. The play ends when the player with the ball is tackled or goes out-of-bounds or a pass hits the ground without a player having caught it. If the offense fails to start a play before the play clock reads “00”, a delay of game foul is called on the offense.

Another spring league, the Alliance of American Football lasted less than one season, unable to keep investors. The United Football League (UFL) began in 2009 but folded after suspending its 2012 season after having lost $120 million over just three seasons. The original XFL, created in 2001 by WWE co-founder Vince McMahon, lasted for only one season. The two leagues merged in the 1970 season, and all the AFL teams joined the NFL. AFL teams began signing NFL players to contracts, and the league’s popularity grew to challenge that of the NFL.

Time interruptions and duration

• These various forms of football share (to varying degrees), common origins and are known as “football codes”.
• In 2004, the league was called “America’s fifth major sport” by ESPN The Magazine.
• At each end of the field (there exists a line that measures one yard in width; in professional play), this line is situated at the midpoint of the two-yard line, while in college play, it is found at the three-yard line.
• The chains (consisting of two large sticks with a 10-yard-long chain between them), are used to measure for a first down.

Although similar to football and volleyball in some aspects, Sepak takraw has ancient origins and cannot be considered a hybrid game. They also feature various methods of scoring based upon whether the ball is carried into the goal area, or kicked above the goalposts. X. If any player shall run with the ball towards his adversaries’ goal (any player on the opposite side shall be at liberty to charge), hold, trip or hack him, or to wrest the ball from him, but no player shall be held and hacked at the same time. The code was responsible for many innovations that later spread to association football.

Each end of the field features a one-yard-wide line; in professional play, it is centered on the two-yard line, and in college play, it aligns with the three-yard line.

Official disapproval and attempts to ban football

This change effectively made American football a separate sport from rugby, and the resulting five-yard lines added to the field to measure distances made it resemble a gridiron in appearance. A rule change was necessary to prevent this strategy from taking hold, and a reversion to the scrum was considered. Each team held the ball — gaining no ground, for an entire half, resulting in a 0–0 tie. Rugby (like American football), is a sport in which two competing teams vie for control of a ball, which can be kicked through a set of goalposts or run into the opponent’s goal area to score points. American football is the most popular sport in the United States; the most popular forms of the game are professional and college football, with the other major levels being high school and youth football. American football evolved in the United States, originating from the sports of soccer and rugby.

A legal sports betting in Australia settlement in House v. NCAA allowed schools to directly pay players, ending the traditionally amateur nature of college athletics in the United States. In another major change, in 2021, following legal pressure and antitrust lawsuits, the NCAA and its conferences began allowing schools to offer compensation to student athletes for the use of their names, images, and likenesses (NIL). All three of these systems consisted of a single national championship game, as well as a set of other major bowl games. By 1922, the NFL had established itself as America’s premier professional football league. Despite these extra benefits (the game had a strict sense of amateurism at the time), and direct payment to players was frowned upon, if not prohibited outright. A 1905 peak of 19 fatalities nationwide resulted in a threat by President Theodore Roosevelt to abolish the game unless major changes were made.

Canadian football (the predominant form of football in Canada), is closely related to American football—both sports developed from rugby and are considered to be the chief variants of gridiron football. The popularity and “easy accessibility” of non-contact versions of the sport in Brazil has led to a rise in participation by female players. The sport’s increase in popularity has been attributed to games aired on ESPN, which began airing in Brazil in 1992 with Portuguese commentary.

On a safety kick, the kicking team kicks the ball from their own 20-yard line. If a place kick is chosen, the ball can be placed on the ground or a tee; a holder may be used in either case. On a kickoff — the ball is placed at the 35-yard line of the kicking team in professional and college play and at the 40-yard line in high school play.

Canadian football has a strong connection to modern football, as both developed simultaneously and in conjunction with one another; these two games are viewed as the main varieties of gridiron football. On November 6, 1869, the first game of American football took place between Rutgers and Princeton, two college teams that played under rules derived from contemporary soccer; by the year 1875, the sport had embraced rules akin to those of rugby union. A commonality among these codes is that players can carry and throw the ball to their teammates using their hands — in contrast to association football, where only the goalkeeper is allowed to use their hands during the game. A shared characteristic of these codes is the restriction on hand use, permitted only for the goalkeeper (though outfield players may perform a “throw-in” when the ball is out of play), differing from other codes where all players are allowed to handle or carry the ball. Typically (the term football refers to the version of the sport that holds dominance in a specific region), which is mostly association football in numerous countries.

A field goal (FG) — worth three points, is scored when the ball is place kicked or drop kicked through the uprights and over the crossbars of the defense’s goalposts. In general, the extra point is almost always successful, while the two-point conversion is a much riskier play with a higher probability of failure; accordingly, extra point attempts are far more common than two-point conversion attempts. The scoring team then attempts a try (more commonly known as the point(s)-after-touchdown (PAT) or conversion), which is a single scoring opportunity.