Shocked the World.

The Arizona Cardinals, founded in 1898, hold the distinction of being the oldest continuously run professional American football club in the United States.[1] They are currently based in Glendale, Arizona, just outside of Phoenix. The Cardinals are currently members of the Western Division of the National Football Conference (NFC) in the National Football League (NFL).

The team was first established in Chicago in 1898 before eventually becoming a charter member of the NFL in 1920. The club was then based in St. Louis, Missouri from 1960 through 1987. Before the 1988 NFL season, the team moved to Tempe, Arizona, an eastern suburb of Phoenix, and played their home games for the next 18 years at Arizona State University's Sun Devil Stadium. In 2006 the club began playing all home games at the newly constructed University of Phoenix Stadium in the northwestern suburb of Glendale.

The franchise's lone NFL championship game victory came in 1947 while they were based in Chicago, and came two decades before the first Super Bowl game was ever played. The club's other NFL championship occurred in 1925, eight years before the league began holding a championship game, and is a controversial title to this day. The much contested title was believed to belong to the Pottsville Maroons but was given to the Cardinals instead in what is called the 1925 NFL Championship controversy. In the six-plus decades since winning the championship in 1947, the team has qualified for the playoffs only six times and has won only five playoff games, three of which were achieved during their ongoing run in the 2008-09 NFL Playoffs.