AFL–NFL merger in the context of "NFL"

The National Football League (NFL) is a professional American football league in the United States. Composed of 32 teams, it is divided equally between the American Football Conference (AFC) and the National Football Conference (NFC). The NFL is one of the major professional sports leagues in the United States and Canada and the highest professional level of American football in the world. Each NFL season begins annually with a three-week preseason in August, followed by the 18-week regular season, which runs from early September to early January, with each team playing 17 games and having one bye week. Following the conclusion of the regular season, seven teams from each conference, including the four division winners and three wild card teams, advance to the playoffs, a single-elimination tournament, which culminates in the Super Bowl, played in early February between the winners of the AFC and NFC championship games. The NFL is headquartered in Midtown Manhattan.

The NFL was formed in 1920 as the American Professional Football Association (APFA) before renaming itself the National Football League for the 1922 season. After initially determining champions through end-of-season standings, a playoff system was implemented in 1933 that culminated with the NFL Championship Game until 1966. Following an agreement to merge the NFL with the rival American Football League (AFL), the Super Bowl was first held in 1967 to determine a champion between the best teams from the two leagues and has remained as the final game of each NFL season since the merger was completed in 1970. The NFL is the wealthiest professional sports league in the world by revenue, and the sports league with the most valuable teams. The NFL also has the highest average attendance (67,591) of any professional sports league in the world and is the most popular sports league in the United States. The Super Bowl is also among the most-watched sporting events in the world, with the individual games accounting for many of the most watched television programs in American history and occupying the top five of Nielsen's all-time most-watched U.S. television broadcasts by 2015.

The Chicago Bears are a professional American football team based in Chicago. The Bears compete in the National Football League (NFL) as a member of the National Football Conference (NFC) North division. They are one of two remaining franchises from the NFL founding in 1920, along with the Arizona Cardinals, which also began in Chicago. The Bears played home games at Wrigley Field on Chicago's North Side through the 1970 season; they have played since then at Soldier Field on the Near South Side, adjacent to Lake Michigan.

The franchise was founded in Decatur, Illinois, on September 20, 1919, became professional on September 17, 1920, and moved to Chicago in 1921. The Bears have won nine NFL Championships, eight before the AFL–NFL merger and one Super Bowl. They hold the NFL records for the most enshrinees in the Pro Football Hall of Fame and the most retired jersey numbers. The Bears' NFL championships and overall victories are second behind the Green Bay Packers, with whom they have a long-standing rivalry. The Bears reached their greatest modern period of success in the 1980s under head coach Mike Ditka, with whom they won Super Bowl XX in the 1985 season. The Bears appeared in their second Super Bowl during the 2006 season, which they lost to the Indianapolis Colts.

The Kansas City Chiefs are a professional American football team based in Kansas City, Missouri. The Chiefs compete in the National Football League (NFL) as a member of the American Football Conference (AFC) West division.

Established in 1959 as a charter member of the American Football League (AFL), the Chiefs started playing in 1960 as the Dallas Texans, owned by league founder Lamar Hunt. In 1963, the team moved to Kansas City, and adopted its current name. The Chiefs joined the NFL in 1970 as a result of the AFL–NFL merger; entering the 2024 season, the team is valued at over US$4.85 billion. After Hunt's death in 2006, his wife, Norma, and children became legal owners of the team. After Norma's death in 2023, the Hunt children inherited her stake in the franchise. Clark Hunt, one of the Hunts' children, has served as chairman and CEO since 2006 and is the ultimate authority over personnel decisions. He is also the team representative at league owner meetings.

The National Football Conference (NFC) is a conference of the National Football League (NFL), the highest level of professional American football in the United States. The NFC and its counterpart, the American Football Conference (AFC), each have 16 teams organized into four divisions.Both conferences were created as part of the 1970 NFL merger with the rival American Football League (AFL). All ten of the former AFL teams and three NFL teams formed the AFC while the remaining thirteen NFL clubs formed the NFC. A series of league expansions and division realignments have occurred since the merger, thus making a total of 16 clubs in each conference.

The defending champions of the NFC are the Philadelphia Eagles, who defeated the Washington Commanders in the 2024 season's NFC Championship Game for their fifth conference championship in the team's history.

The Super Bowl, originally known as the AFL–NFL World Championship Game, is the annual league championship game of the National Football League (NFL) of the United States. It has served as the final game of every NFL season since 1966, replacing the NFL Championship Game. Since 2022, the game has been played on the second Sunday in February. Prior Super Bowls were played on Sundays in early to mid-January from 1967 to 1978, late January from 1979 to 2003, and the first Sunday of February from 2004 to 2021. Winning teams are awarded the Vince Lombardi Trophy, named after the eponymous coach who won the first two Super Bowls. Because the NFL restricts the use of its "Super Bowl" trademark, it is frequently referred to as the "big game" or other generic terms by non-sponsoring corporations. The day the game is held is commonly referred to as "Super Bowl Sunday" or "Super Sunday".

The game was created as part of a 1966 merger agreement between the NFL and the competing American Football League (AFL) to have their best teams compete for a championship. It was originally called the AFL–NFL World Championship Game until the "Super Bowl" moniker was adopted in 1969's Super Bowl III. The first four Super Bowls from 1967 to 1970 were played before the merger, with the NFL and AFL each winning two. After the merger in 1970, the 10 AFL teams and three NFL teams formed the American Football Conference (AFC) and the remaining 13 NFL teams formed the National Football Conference (NFC). All games since 1971's Super Bowl V have been played between the two best teams from each conference, with the NFC leading the AFC 28–27.

The Pittsburgh Steelers are a professional American football team based in Pittsburgh. The Steelers compete in the National Football League (NFL) as a member of the American Football Conference (AFC) North division. Founded in 1933, the Steelers are the seventh-oldest franchise in the NFL, and the oldest franchise in the AFC.

In contrast with their status as a perennial losing franchise in the pre-merger NFL, where they were the oldest team never to have won a league championship, the Steelers of the post-merger (modern) era are among the most successful NFL franchises, especially during their dynasty in the 1970s. The team is tied with the New England Patriots for the most Super Bowl titles at six, and they have both played in (16 times) and hosted (11 times) more conference championship games than any other team in the NFL. The Steelers have also won eight AFC championships, tied with the Denver Broncos, but behind the Patriots' record 11 AFC championships. The team is tied with the Broncos, Dallas Cowboys, and San Francisco 49ers for the second-most Super Bowl appearances with eight.

The Denver Broncos are a professional American football team based in Denver. The Broncos compete in the National Football League (NFL) as a member of the American Football Conference (AFC) West division. The team is headquartered in Englewood, Colorado.

The team began play in 1960 as a charter member of the American Football League (AFL) and joined the NFL as part of the merger in 1970. The Broncos are currently owned by the Walton-Penner group. Since 2001, the Broncos have played their regular season home games at Empower Field at Mile High; Denver previously played its home games at Mile High Stadium from its inception in 1960 through the 2000 season.

The Super Bowl is the annual American football game that determines the champion of the National Football League (NFL). The game culminates a season that begins in the previous calendar year, and is the conclusion of the NFL playoffs. The winner receives the Vince Lombardi Trophy. The contest is held in an American city, chosen three to four years beforehand, usually at warm-weather sites or domed stadiums. Since January 1971, the winner of the American Football Conference (AFC) Championship Game has faced the winner of the National Football Conference (NFC) Championship Game in the culmination of the NFL playoffs.

Before the 1970 merger between the American Football League (AFL) and the National Football League (NFL), the two leagues met in four such contests. The first two were marketed as the "AFL–NFL World Championship Game", but were also casually referred to as "the Super Bowl game" during the television broadcast. Super Bowl III in January 1969 was the first such game that carried the "Super Bowl" moniker in official marketing; the names "Super Bowl I" and "Super Bowl II" were retroactively applied to the first two games.

The New England Patriots are a professional American football team based in the Greater Boston area. The Patriots compete in the National Football League (NFL) as a member of the American Football Conference (AFC) East division. The Patriots play home games at Gillette Stadium in Foxborough, Massachusetts, which is 22 miles (35 km) southwest of Boston, Massachusetts. The franchise is owned by Robert Kraft, who purchased the team in 1994. As of 2024, the Patriots are the sixth-most valuable sports team in the world and have sold out every home game since 1994.

Founded in 1959 as the Boston Patriots, the team was a charter member of the American Football League (AFL) before joining the NFL in 1970 through the AFL–NFL merger. The Patriots played their home games at various stadiums throughout Boston, including Fenway Park from 1963 to 1969 until the franchise moved to Foxborough in 1971. As part of the move, the team changed its name to the New England Patriots. Home games were played at Foxboro Stadium until 2002 when the stadium was demolished alongside the opening of Gillette Stadium. The team began using Gillette Stadium for home games the same year.