NCAAF

College football has been played for over one hundred years, but the game and the organizational structure of college football have evolved significantly during that time. The first college football game was played in 1869, but the game continued to develop during the late 19th and early 20th century. During this period, Walter Camp pioneered the concept of a line of scrimmage, the system of downs, and the College Football All-America Team. The 1902 Rose Bowl was the first bowl game in college football history, and the event began to be held annually starting with the 1916 Rose Bowl. In the 1930s, other bowl games came into existence, including the Sugar Bowl, the Cotton Bowl Classic, and the Orange Bowl. The 1906 college football season was the first season played under the IAAUS (which would later change its name to the NCAA) and the first season in which the forward pass was legal. The IAAUS had formed after President Theodore Roosevelt, responding to several deaths that had occurred during football games, requested that colleges find ways to make football a safer sport.

In 1935, the Heisman Trophy was presented for the first time; the award is generally considered to be college football's most prestigious individual award. In 1965, the NCAA voted to allow the platoon system, in which different players played on offense and defense; teams had previously experimented with the concept in the 1940s. In 1968, the NCAA began allowing freshmen to compete in games; freshmen had previously been required to take a redshirt year. In 1975, after a growth of "grants-in-aid" (scholarships given for athletic rather than academic or need-based reasons), the NCAA voted to limit the number of athletic scholarships each school could offer. In 1968, the NCAA required all teams to identify as members of either the University Division (for larger schools) or the College Division (for smaller schools), and in 1973, the NCAA divided into three divisions. At the urging of several larger schools seeking increased autonomy and commonality, Division I-A was formed prior to the 1978 season; the remaining teams in Division I formed the Football Championship Subdivision or FCS (then known as Division I-AA). In 1981, members of the College Football Association attempted to create a fourth division consisting solely of the most competitive schools, but this effort was defeated. In the 1992 season, the SEC split into divisions and played the first FBS conference championship game. The Big 12 and Western Athletic Conference did the same for the 1996 season, and most conferences eventually adopted divisions and championship games.

The NCAA does not officially award an FBS football championship, but several teams have claimed national championships. Other organizations have also sought to rank the teams and crown a national champion. The Dickinson System and other methods were formed in the early 20th century to select the best team in the country, and the AP Poll and the Coaches Poll began rankings teams in the middle of the 20th century. In many seasons, selectors such as the AP and the Coaches Poll designated different teams as national champions. Often, more than one team would finish undefeated, as the top teams were not guaranteed to play each other during the regular season or in bowl games. In 1992, five major conferences established the Bowl Coalition in order to determine the FBS champion. In 1998, the two remaining major conferences joined with the other five conferences to form the Bowl Championship Series. The BCS used a rankings system to match up the top two teams in the BCS National Championship Game. However, even the BCS era saw split national championships, as in 2003 the AP Poll and the Coaches Poll selected different national champions. The College Football Playoff replaced the BCS starting with the 2014 season; it features four teams through the 2023 season, after which it will expand to 12 teams.

Since 2021, when the Supreme Court unanimously held in NCAA v. Alston that restrictions on name, image, and likeness compensation violated antitrust law, FBS football players have been able to make money from sources other than college scholarships. However, there remains no unified system to provide players with such compensation.