Sports-related curses
The Buffalo sports curse is an explanation for Buffalo's inability to win a Super Bowl, Stanley Cup, or an NBA championship. Those who believe in the Buffalo curse cite as examples the four consecutive Super Bowl losses by the Buffalo Bills for the 1990–1993 seasons (and the team's failure to qualify for the NFL playoffs from 2000 to 2017), as well as the failure of the Buffalo Sabres ever to win the Stanley Cup (despite winning the Presidents' Trophy for most regular-season points in 2006–07). The Bills, however, won two American Football League (AFL) titles (1964 and 1965), the latter occurring just months before an agreement was reached to merge the AFL and the National Football League (NFL) (Bills owner Ralph Wilson initiated the talks to merge the two leagues, according to the Pro Football Hall of Fame). In spite of that, it has been argued that this was achieved when the AFL was in its infancy as an upstart league, garnering little, if any, national attention before merging with the established NFL, and that even if they are considered to be at par, since there would be no Super Bowl until after the 1966 season, the Bills could be no greater than co-champions. There have been conflicting suggestions on how the Bills would have fared against the Green Bay Packers or Cleveland Browns, much as there have been disputes over how well the San Diego Chargers would have played against the Bears in 1963, had the Super Bowl existed at that time.
Super Bowl XXXVI
The game heralded the Patriots dynasty, being the first of nine Super Bowl appearances under the duo of head coach Bill Belichick and quarterback Tom Brady. The Patriots finished the 2002 NFL season 9-7, missing the playoffs. But they went on to win Super Bowl XXXVIII, Super Bowl XXXIX, thus winning three Super Bowls in four years. Then, they won their fourth and fifth Super Bowls (Super Bowl XLIX and Super Bowl LI) a decade after their third. Brady also won three more Super Bowl MVP awards in Super Bowl XXXVIII, Super Bowl XLIX, and Super Bowl LI, making him the only player to be named Super Bowl MVP four times. Super Bowl XXXVI later became part of the wider 2007 New England Patriots videotaping controversy, also known as "Spygate". In addition to other videotaping allegations, the "Boston Herald" reported, citing an unnamed source, that the Patriots had also taped the Rams' walkthrough practice prior to the game. After further investigations, the league determined that no tape of the Rams' Super Bowl walkthrough was made, and the "Herald" later issued an apology in 2008 for their article about the alleged walkthrough tape. Nevertheless, the Patriots finished the 2007 regular season with a perfect 16–0 record, but failed to record an undefeated 19–0 championship season after losing Super Bowl XLII to the New York Giants. And at the conclusion of the 2015 NFL season, the Patriots held the NFL's best record since Spygate, compiling a 96-32 record from 2008 to 2015.
The Patriots' win in this Super Bowl, beyond just serving as a springboard to four more championships, also became the starting point for a decade of success in Boston sports, with the city's teams winning seven championships in the four major North American sports leagues (the NFL, the NBA, the NHL and MLB), including at least one in each league. Over the next fifteen years, in addition to the Patriots' four additional Super Bowls: