The team has also won four division titles (,,, and ) since their 1947 – 1948 NFL championship game appearances.

The Ravens triumphed over the New York Giants in Super Bowl XXXV at the conclusion of the 2000 season, making them one of four NFL teams to win in their lone Super Bowl appearance, along with the New Orleans Saints, New York Jets, and Tampa Bay Buccaneers.

Under his watch, the Browns won the AAFC championship in all four years of its existence, including the AAFC's only perfect season in 1948, and continued to succeed after moving to the NFL in 1950.

The Browns came into 1954 as one of the most powerful teams in the NFL, having reached the championship in each of their first four years in the league.

It was Graham's last game ; the win capped a 10-year run in which he led his team to the league championship every year, winning four in the AAFC and three in the NFL.

In his 16-year career in the NFL, Anderson made four trips to the Pro Bowl, won four passing titles, was named NFL MVP in 1981, and set the record for completion percentage in a single season in 1982 ( 70. 66 %).

† Spent four of his nineteen NFL seasons with the Bengals.

The Lions have won four NFL Championships, the last in 1957, giving the club the second-longest NFL championship drought behind the Arizona Cardinals.

The Lions have not had much success during the Super Bowl era: the Lions are one of four current NFL teams that have yet to qualify for the Super Bowl, and the team is 1-10 in post-season play during that period.

Early football stars such as Jim Thorpe, Paddy Driscoll, and Al Bloodgood were skilled drop-kickers ; Driscoll in 1925 and Bloodgood in 1926 hold a tied NFL record of four drop kicked field goals in a single game.

Following the two championships in 1958 and 1959, the Colts did not return to the NFL Championship for four seasons and saw a transition from head coach Ewbank to a young Don Shula in 1963.

Three years later Unitas would end his NFL career by starting four games for the 1973 Chargers ; his last win was a 34-7 win over the Bills.

The inaugural season featured many of the players who would lead Jacksonville into the playoffs in the team's next four seasons, including quarterback Mark Brunell ( acquired in a draft day trade from Green Bay ), offensive lineman Tony Boselli ( drafted with the 2nd pick overall in the 1995 NFL Draft ) running back James Stewart ( also drafted in 1995 ), and wide receiver Jimmy Smith ( signed as a free agent ).

The team became the first NFL expansion team to make the playoffs three times in its first four seasons of play.

In 2002 the NFL split up the two conferences into four divisions, sending the Jacksonville Jaguars to the AFC South.

In his first season, the Vikings led by the NFL Comeback Player of the Year Tommy Kramer, went 9 – 7, their first winning record in four years.

Between 2001 and 2005, the Patriots became the second team in NFL history ( after the Dallas Cowboys ) to win three Super Bowls in four years ( Super Bowl XXXVI, XXXVIII, and XXXIX ), and the eighth ( and most recent ) to win consecutive Super Bowls.

The team ranks third among all NFL franchises with eight NFL titles: four in the pre – Super Bowl era ( 1927, 1934, 1938, 1956 ) and four since the advent of the Super Bowl ( Super Bowls XXI ( 1986 ), XXV ( 1990 ), XLII ( 2007 ), and XLVI ( 2011 )).

Sanders was also famous for playing on major league baseball teams ( the New York Yankees and the Atlanta Braves ) while simultaneously playing in the NFL.

During its final two years of existence, the AFL teams won upset victories over the NFL teams in Super Bowl III and IV, the former New York Jets victory was considered one of the biggest upsets in American sports history.

When the merger took place, all ten AFL franchises became part of the merged league's new American Football Conference ( AFC ), with three teams from the original 16-team NFL ( the Pittsburgh Steelers, Cleveland Browns, and Baltimore Colts ) joining them.

The remaining 13 original NFL teams became the inaugural members of the National Football Conference ( NFC ).

When Hunt, Adams, and Howsam were unable to secure a controlling interest in the Chicago Cardinals, they approached NFL commissioner Bert Bell and proposed the addition of expansion teams.

However, many major league baseball and NFL teams in the United States also promote 24 ounce cans marked with team logos.

These factors – combined with a war for players between the two leagues that raised salaries and ate into owners ' profits – ultimately led to the dissolution of the AAFC and the merger of three of its teams, including the Browns, into the NFL in 1949.

The NFL has so far refused to acknowledge AAFC statistics and records because the Browns ' achievements – including their perfect season – did not take place in the NFL or against NFL teams, and not even in a league fully absorbed by the NFL.

The AAFC proposed match-ups with NFL teams numerous times during its four-year existence, but no inter-league game ever materialized.

Today, however, all NFL teams use in-helmet radios to communicate with players.

The Panthers, along with the Jacksonville Jaguars, joined the NFL as expansion teams in 1995.

Like many other NFL teams located in temperate climates, the Panthers traditionally wear their white jerseys at home during the first half of the season — forcing opponents to wear their dark ones under the warm autumns in Charlotte.

This rivalry stems from the close proximity of the two cities, and features some carryover elements from the longstanding rivalry from the two cities ' NFL teams ( Browns and Steelers ).

In the 1960s National Football League ( NFL ) teams began to organize professional cheerleading teams.

This caused the image of cheerleaders to permanently change, with many other NFL teams emulating them.

In 1964 the NFL allowed teams to wear white jerseys at home ; several teams did so, and the Cowboys have worn white at home ever since, except on certain " throwback " days.

In addition, both teams have national fan bases rivaled by few NFL teams, and both come from areas with a strong following for football at all levels.

They have been to the playoffs six times and have won six playoff games, three of which were victories during their run in the 2008-09 NFL Playoffs.

Six former Oriole franchise radio announcers have received the Hall of Fame's Ford C. Frick Award for excellence in broadcasting: Chuck Thompson ( who was also the voice of the old NFL Baltimore Colts ); Jon Miller ( now with the San Francisco Giants ); Ernie Harwell, Herb Carneal ; Bob Murphy and Harry Caray ( as a St. Louis Browns announcer in the 1940s.

The Browns were NFL champions again in 1964, but have since been only moderately successful, reaching the league's playoffs 15 times and appearing in the AFC championship game three times.

The Bears have won nine ( 9 ) NFL Championships ( eight pre-merger, and one Super Bowl ).

The Bears have also recorded more regular season and overall victories than any other NFL franchise.

In a tribute, Mike Brown named the stadium after his father during a time when it was a trend in the NFL to accept corporate offers to have the stadium renamed for a corporation.

The Cincinnati Bengals were unique in the NFL as they did not have uniform numbers on the players sleeves until the 1980 season.

In the NFL running backs must wear numbers 20 to 49, tight ends must wear numbers 80 to 89 ( or 40 to 49 if the numbers 80 to 89 have been exhausted ), and wide receivers must wear numbers 10 to 19 or 80 to 89.

In the years 1953 – 66 the Colts played in the NFL Western Conference ( also known as division ), but were never known to have a significant rivalry with any of the other franchises in that alignment, seeing as they were the eastern-most team and the rest of the division included the Great Lakes franchises Green Bay, Detroit Lions, Chicago Bears, and after 1961, the Minnesota Vikings.

In 2004, the Jaguars became the first NFL team to have three African-American quarterbacks on their roster.

The Jaguars in 1995 were the first NFL team to have 2-tone borders on their numbers and lettering, and the first NFL team to show a complex logo ( the crawling Jaguar ) on the sleeve.

Both collegiate and NFL football have certain examples of football lore which involve laterals.

Since the team's first season in 1961, the Vikings have had one of the highest winning percentages in the NFL.

The Vikings have won one NFL championship, in 1969, prior to the league's merger with the American Football League ( AFL ).

Despite producing some of the best teams in NFL history over the years, the Vikings have not won a Super Bowl.

In doing so, the Vikings became the second team in NFL history to have a. 500 record ( 8 – 8 ) in the regular season and win a playoff game ( The St. Louis Rams did the same thing only a day earlier ).

Since 2006, the Vikings have been known especially for their strong run defense (# 1 in the NFL in 2006, 2007, and 2008 ; they are the first NFL team to accomplish this since the AFL – NFL merger in 1970 ), anchored by the Williams Wall consisting of defensive tackle Kevin Williams and nose tackle Pat Williams ( no relation ).