American football is the gridiron sport played by 2 teams of 11 players who advance an oval ball toward the opposing team’s end zone for points, primarily through tackle-based downs and the forward pass. The modern game traces to Walter Camp’s rule reforms at Yale in the 1880s; the National Football League, the top professional league, was founded on August 20, 1920 in Canton, Ohio. The NFL today operates 32 franchises, plays a 17-game regular-season schedule, and ends each year with the Super Bowl, the most-watched US television broadcast and one of the largest single sporting events in the world.
Why American football diverged from rugby and soccer
American football began on November 6, 1869, when Rutgers and Princeton played a 25-on-25 game on a New Jersey field under rules taken from the English Football Association’s 1863 soccer code. The game would have been more familiar to a soccer fan than to a modern football fan: the ball was kicked, not thrown, and the goal was a goal kick, not a touchdown.
The change came at Yale, where Walter Camp served on the intercollegiate rules committee from 1878 until his death in 1925, with most years as chairman. Camp’s reforms over the 1880s converted the sport from a rugby variant into something genuinely new.
The 1880 reforms cut the team to 11 players and replaced the rugby scrum with a snap-back from a fixed line of scrimmage; this gave one team uncontested possession of the ball and turned every play into a planned offensive attempt. The 1882 down-and-distance rule (originally 5 yards in 3 downs, later 10 yards in 4) prevented teams from holding the ball indefinitely without advancing. The 1880s also introduced offensive signal calling, the quarterback position, and a scoring system that rewarded the touchdown over the kicked goal.
The forward pass came later, in 1906, after a series of college football injuries (including at least 18 deaths in the 1905 season alone) led President Theodore Roosevelt to threaten a federal ban on the sport unless rules were reformed. The pass spread out the field, reduced the dense human pile-ups of the early game, and made the quarterback the central offensive player.
Together, these reforms produced a sport that diverged sharply from rugby (still scrum-driven) and soccer (still feet-only). By the time the NFL was founded in 1920 at a Hupmobile dealership in Canton, Ohio, the basic structure of the modern game was already in place.
Key American football facts
- First college game. Rutgers 6, Princeton 4, on November 6, 1869, in New Brunswick, NJ, played 25-on-25 under soccer-derived rules.
- Father of American Football. Walter Camp (Yale), who introduced the 11-man team, the line of scrimmage, the system of downs, the quarterback, and offensive signal calling between 1880 and 1900.
- Forward pass legalized. 1906, in response to deaths and injuries that brought the sport close to a federal ban.
- NFL founded. August 20, 1920, in Canton, Ohio, originally as the American Professional Football Association. Renamed the NFL in 1922. First president: Olympic gold medalist Jim Thorpe.
- AFL-NFL merger. Agreed June 1966; completed for the 1970 season. Created the AFC and NFC conferences within a single league.
- NFL teams today. 32 franchises, 16 in each conference (AFC and NFC), with each conference split into 4 divisions of 4 teams.
- Regular season. 17 games per team since 2021 (was 16 from 1978 to 2020). 18 weeks total with each team having 1 bye.
- Super Bowl I. January 15, 1967 at the Los Angeles Memorial Coliseum. Green Bay Packers (NFL) 35, Kansas City Chiefs (AFL) 10. MVP: Bart Starr. Coach: Vince Lombardi.
- Super Bowl LX. February 8, 2026 at Levi’s Stadium, Santa Clara, CA. Seattle Seahawks 29, New England Patriots 13. MVP: Kenneth Walker. Halftime: Bad Bunny.
- Most Super Bowl wins by a player. Tom Brady, 7 (2002, 2004, 2005, 2015, 2017, 2019, 2021). Six with the Patriots, 1 with the Buccaneers.
- Most Super Bowl wins by a franchise. Pittsburgh Steelers and New England Patriots, 6 each.
- Most NFL coaching wins. Don Shula, 347 (Colts and Dolphins, 1963 to 1995). Bill Belichick is second on the all-time list.
- Only undefeated NFL team. 1972 Miami Dolphins (17-0, including Super Bowl VII).
- Heisman Trophy. First awarded in 1935 to halfback Jay Berwanger of the University of Chicago, who became the first overall pick in the 1936 NFL Draft but never played professionally.
- Pro Football Hall of Fame. Opened September 7, 1963 in Canton, Ohio, with a first class of 17 inductees including Jim Thorpe, Sammy Baugh, and George Halas.
- 2-point conversion in NFL. Adopted 1994 (had existed in college football since 1958).
- NFL International Series. London games annually since 2007 (except 2020). Munich since 2022. Madrid added 2025.
Common myths about American football
Myth: Tom Brady won 4 Super Bowls. He won 7. Joe Montana and Terry Bradshaw each won 4, which made 4 the previous quarterback record. Brady passed it in 2015 and ended his career with 7 wins and 10 Super Bowl appearances, both NFL records by wide margins.
Myth: The NFL has always had 32 teams. The league was founded in 1920 with about a dozen franchises, contracted to 8 by 1932 (its all-time low) during the Depression, expanded again after World War 2, and reached 32 only in 2002 when the Houston Texans joined as the most recent expansion team. The 32-team structure is just over 2 decades old.
Myth: The first Super Bowl was called the Super Bowl. It was officially titled the AFL-NFL World Championship Game when it was played on January 15, 1967. The ‘Super Bowl’ name was coined by Chiefs owner Lamar Hunt and applied retroactively to the first 4 games. Roman numerals were not used until Super Bowl V in 1971; before then, the games were known by year.
Myth: Football was invented by Walter Camp alone in a single year. Camp’s reforms passed over a 20-year period through committee votes and were the product of conversations with many coaches, players, and administrators across the Ivy League. Calling him the ‘Father of American Football’ is shorthand for his decades of committee chairmanship, not for sole authorship.
Myth: The Cleveland Browns have never won an NFL championship. The Browns won 3 NFL championships in the 1950s under coach Paul Brown (1950, 1954, and 1955) and a fourth in 1964 under Blanton Collier (Paul Brown was fired before the 1963 season). What they have not won is a Super Bowl, which began as the AFL-NFL Championship in 1967 (after the Browns’ last championship). The Browns are one of two pre-merger NFL franchises that have never appeared in a Super Bowl, the other being the Detroit Lions.
Myth: All NFL games are played on grass. A growing share of NFL games are played on artificial turf. As of 2026, more than half of NFL stadiums use various synthetic-turf surfaces, with the rest on natural grass. Players’ unions have repeatedly raised concerns about higher injury rates on artificial surfaces, but the NFL has not mandated grass.
Myth: The NFL season is shorter than the MLB season. Both observations are true; the comparison usually overstates the gap. NFL teams play 17 regular-season games (each game is once a week) versus MLB’s 162 games (4 to 5 per week). But MLB has had its season at 162 games only since 1961; before then, the NFL and MLB schedules were closer in count, though not in pace.
Frequently asked questions about American football
Why does the NFL season last so long compared to the number of games?
The 17-game NFL regular season is spread across 18 weeks (each team has 1 bye), runs from early September to early January, and feeds into a 4-week single-elimination playoff that ends with the Super Bowl in early February. The combined regular-season-plus-playoffs window is roughly 22 weeks, or just over 5 months, even though most teams play only 17 to 21 actual games. The schedule is structured this way because each game is high-impact (full-pad, full-contact) and players need a week of recovery; you cannot run an NFL game on a Tuesday after a Sunday game without elevating injury rates significantly.
What is the difference between college football and the NFL?
The NFL is the top US professional league with 32 franchises and a 17-game regular season; college football is the NCAA-administered amateur game played by more than 130 Division I FBS schools, plus dozens at lower levels. Differences include game length (NFL games are 60 minutes of clock; NCAA is the same with slightly different timing rules), pass interference penalties (NFL is a spot foul; NCAA is a 15-yard maximum), the 2-point conversion rule (in college since 1958, in the NFL since 1994), and overtime structure (NFL uses modified sudden death; college uses an alternating-possession format). College football also has the postseason bowl game system and a 4-team or 12-team College Football Playoff for the national championship; the Heisman Trophy goes to the year’s most outstanding college player.
How many people watch the Super Bowl?
The Super Bowl typically draws 100 to 130 million US television viewers, more than the World Series or NBA Finals combined. The game produces some of the most expensive 30-second ad slots in television, with rates above $7 million per spot in recent years. International viewership adds tens of millions more, especially in Mexico, the United Kingdom, and Germany, where the NFL has marketed actively. The Super Bowl halftime show, since the early 1990s, is itself one of the year’s most-watched musical events.
Who is Patrick Mahomes, and how does he compare to Tom Brady?
Patrick Mahomes is the quarterback of the Kansas City Chiefs, drafted 10th overall in 2017 out of Texas Tech and starting since 2018. He has won 3 Super Bowls (LIV, LVII, LVIII) and 2 NFL MVP awards by the end of the 2024 season, with the Chiefs reaching the championship game 5 times in 6 seasons. Tom Brady ended his career with 7 Super Bowl wins, 5 Super Bowl MVP awards, and 3 NFL MVP awards across 23 seasons; Mahomes is on a faster pace through the early portion of his career but has decades to go before he can match Brady’s longevity. The 2025 season ended with Mahomes losing Super Bowl LIX (40 to 22) to the Philadelphia Eagles, his second Super Bowl loss; Brady lost 3 across his career.
Why did the NFL stop using Roman numerals for Super Bowl 50, then return to them?
The NFL deliberately rendered Super Bowl 50 (February 2016) in Arabic numerals because the league felt the lone Roman ‘L’ was visually awkward as a logo, since the letter has no internal symmetry and looked like a single uppercase character on its own. The designers had no problem with the more elaborate ‘XLVIII’ or ‘LIV’, and the league restored Roman numerals starting with Super Bowl LI (51) in 2017. The most recent edition, Super Bowl LX (60) in 2026, again used the Roman numeral. The league has not announced plans to make further exceptions.
Source notes
The standard references for the NFL’s history are Wikipedia’s American football and History of the National Football League entries. The 1869 college beginning is at 1869 Princeton vs. Rutgers football game; the rule-reform period is at Walter Camp. The Super Bowl history is at Super Bowl I and Super Bowl LX, the most recent edition. The major star profiles are at Tom Brady and Patrick Mahomes. The merger structure is at AFL-NFL merger, and the canonical institutional address is the Pro Football Hall of Fame in Canton, Ohio.
You can test these facts on the American football trivia quiz, a 10-question true-or-bluff round at the Sharp reading level.
