Title: Super Bowl curse
Content:  Since 1993, few winning teams have followed up their Super Bowl appearances with a second Super Bowl appearance, or even advanced to a conference title game in the subsequent season (the 1994 Dallas Cowboys qualified for their conference title but did not qualify for the Super Bowl). Only seven teams have won back-to-back Super Bowl championships, and only one of these seven have made more than two consecutive winning appearances in the Super Bowl. The only franchise to reach more than three straight title games was the Buffalo Bills who lost four Super Bowls in a row from 1990–93. The salary 
Title: Three-peat
Content:  In the National Football League (NFL), a Super Bowl championship three-peat has not been accomplished. Two-time defending Super Bowl champions who failed to three-peat include the Green Bay Packers (1968), Miami Dolphins (1974), Pittsburgh Steelers (twice: 1976, 1980), San Francisco 49ers (1990), Dallas Cowboys (1994), Denver Broncos (1999), and New England Patriots (2005). All of these teams failed to return to the title game in the third season (indicated in parentheses). The Buffalo Bills went to 4 consecutive Super Bowls from 1990–1993 which is a feat unmatched in NFL history, however they lost in every appearance. The New England Patriots are the most recent team to play in three consecutive Super Bowls from 2016–2018, winning Super Bowl LI (2016) and Super Bowl LIII (2018), 
Title: Super Bowl XXXIX
Content:  World Series. The Eagles did not return to the Super Bowl until 2017, also with a 13–3 record, when they beat the Falcons and Vikings in the reverse order that they did in the 2004–05 playoffs. They exacted revenge on New England in Super Bowl LII, defeating them 41–33 and winning their first championship since 1960. 15 years later, Andy Reid returned to the Super Bowl as head coach of the Kansas City Chiefs, who defeated the San Francisco 49ers 31–20 at Super Bowl LIV, winning the team's first title since Super Bowl IV and Reid's first as head coach. They would return to the Super Bowl in 2021, but lose to Tom Brady's second team, the Tampa Bay Buccaneers, 31–9. As of 2021, this is the last time that a team has won back-to-back Super Bowls.
Title: Super Bowl XXVI
Content:  and Joe Gibbs the first coach, to win a Super Bowl with three different quarterbacks. Two other teams have since duplicated this feat: the New York Giants (Phil Simms in Super Bowl XXI, Jeff Hostetler in Super Bowl XXV, and Eli Manning in Super Bowls XLII and XLVI) and the Green Bay Packers (Bart Starr in the first two Super Bowls, Brett Favre in Super Bowl XXXI, and Aaron Rodgers in Super Bowl XLV). This was the last major professional championship won by a D.C.-based team until the Capitals won the Stanley Cup in 2018. This was also the last game for Washington guard Russ Grimm.
Title: History of the Green Bay Packers
Content:  remain, to date, the only team to win back-to-back Super Bowl titles more than once, the San Francisco 49ers won Super Bowls XXIII and XXIV following the 1988 and 1989 seasons, the Dallas Cowboys won Super Bowls XXVII and XXVIII following the 1992 and 1993 seasons, the Denver Broncos won Super Bowls XXXII and XXXIII following the 1997 and 1998 seasons, and most recently, the New England Patriots won Super Bowls XXXVIII and XXXIX following the 2003 and 2004 seasons. After the franchise's victory in Super Bowl II, Vince Lombardi announced that he was stepping down as head coach, although he would retain the title of general manager. Phil Bengtson took his place.
Title: List of 2013 NFL records and milestones
Content:  team to defend their title were the 2004 New England Patriots, who won Super Bowls XXXVIII  and XXXIX . This marks a tie for the longest period between repeat winners in Super Bowl history. The other longest stretch without a back-to-back champion is the period between the Pittsburgh Steelers' wins in Super Bowl XIII  and Super Bowl XIV  and the San Francisco 49ers' victories in Super Bowl XXIII  and Super Bowl XXIV . The Ravens became the fifteenth Super Bowl winner to fail to make the playoffs in the following season, which includes six of the past 12 defending champions.                 
Title: List of Super Bowl champions
Content:  and the Bills have lost four. The record for consecutive wins is two and is shared by seven franchises: the Green Bay Packers (1966–1967), the Miami Dolphins (1972–1973), the Pittsburgh Steelers (1974–1975 and 1978–1979, the only team to accomplish this feat twice and the only team with four wins in six consecutive seasons), the San Francisco 49ers (1988–1989), the Dallas Cowboys (1992–1993), the Denver Broncos (1997–1998), and the New England Patriots (2003–2004). Among those, Dallas (1992–1993; 1995) and New England (2001; 2003–2004) are the only teams to win three out of four consecutive Super Bowls. The 1972 Dolphins capped off 
Title: History of the Green Bay Packers
Content:  Packers achieved a "three-peat" (three consecutive league championships) for only the second time in franchise history and the first time since they were named league champions following the 1929–31 seasons. To this day, no other NFL team has matched or surpassed this record. The Packers' back-to-back wins in the first two Super Bowls remains a Super Bowl record, and has since been tied seven times by six other franchises: the Miami Dolphins won Super Bowls VII and VIII following the 1972 and 1973 seasons, the Pittsburgh Steelers won Super Bowls IX and X following the 1974 and 1975 seasons as well as Super Bowls XIII and XIV following the 1978 and 1979 seasons 
Title: Super Bowl
Content:  making the playoffs in eight straight seasons. Nine players and three coaches and administrators on the team have been inducted into the Pro Football Hall of Fame. Pittsburgh still remains the only team to win back-to-back Super Bowls twice and four Super Bowls in a six-year period. The Steelers' 1970s dynasty was interrupted only by the Raiders' first Super Bowl win in Super Bowl XI and the Cowboys' second Super Bowl win in Super Bowl XII. Conversely, the Vikings, with quarterback Fran Tarkenton and their Purple People Eaters defense, were the only other team to appear in multiple Super Bowls (IV, VIII, IX and XI) this decade but failed to win each one.
Title: Super Bowl XXXII
Content:  Redskins in Super Bowl XVIII. Denver also became the first team to score on four 1-yard touchdown runs in a Super Bowl. The Packers became the third defending Super Bowl champion to lose the Super Bowl, joining the Dallas Cowboys (1977–78: won Super Bowl XII, lost Super Bowl XIII) and the Washington Redskins (1982–83: won Super Bowl XVII, lost Super Bowl XVIII), and would be later joined by the Seattle Seahawks (2013–14: won Super Bowl XLVIII, lost Super Bowl XLIX), the New England Patriots (2016–17: won Super Bowl LI, lost Super Bowl LII) and the Kansas City Chiefs (2019-20: won Super Bowl LIV, lost Super Bowl LV).

Question: when was the last time someone won the super bowl back to back?
Answer: 2004.