Super Bowl XXXIX was an American football game played between the American Football Conference (AFC) champion New England Patriots and the National Football Conference (NFC) champion Philadelphia Eagles to decide the National Football League (NFL) champion for the 2004 season. The Patriots defeated the Eagles by the score of 24–21. The game was played on February 6, 2005, at Alltel Stadium in Jacksonville, Florida, the first time the Super Bowl was played in that city.

The Tom Brady–Bill Belichick era, also known as the Brady–Belichick era, the New England Patriots dynasty, or the Patriots dynasty, was a sports dynasty of the New England Patriots in the National Football League (NFL) that lasted from the 2001 to the 2019 season. The dynasty is named after quarterback Tom Brady and head coach Bill Belichick, who are regarded as among the greatest in their respective positions. Belichick and Brady are consistently credited with the Patriots' success and are considered responsible for one of the sport's longest and most dominant dynasties. They are also credited with helping to create and sustain the culture around the team, dubbed the "Patriot Way", where there is an emphasis on personal accountability, consistent improvement, and a focus on team success over personal gain.