Title: Cinderella (sports)
Content:  Oakland Raiders — The Raiders became the first Wild-Card playoff team to win the Super Bowl, defeating the Philadelphia Eagles 27–10 in Super Bowl XV. ; 1997 Denver Broncos—The Broncos were the first AFC team since the then-Los Angeles Raiders at Super Bowl XVIII to win a Super Bowl, defeating the defending Super Bowl champion Green Bay Packers 31–24 at Super Bowl XXXII and winning their first Super Bowl in franchise history. ; 1999 St. Louis Rams — After losing starting quarterback Trent Green in the preseason to a torn ACL, many suspected the Rams' season was over. Kurt Warner, an undrafted quarterback 
Title: Raiders–Steelers rivalry
Content:  Steelers and won 30–17. Both teams would have winning records (Raiders 11–5, Steelers 10–5–1) and possession of the 1st and 3rd seeds of the playoffs and win their divisions. Despite this, neither team played each other in the postseason as the Steelers were eventually knocked out by the Titans while the Raiders went on to lose against the Buccaneers in Super Bowl XXXVII. Since then, the Raiders collapsed after losing the Super Bowl and lost quarterback Rich Gannon to a career-ending injury in 2004, missing the playoffs each year until 2016, while the Steelers have stayed fairly successful under new quarterback Ben Roethlisberger, winning two more Super Bowls and appearing in a third one.
Title: 2002 Oakland Raiders season
Content:  The Raiders defeated the Titans and advanced to their first Super Bowl since Super Bowl XVIII, when they were based in Los Angeles. As of 2018, this has been the last time the Raiders won a playoff game, as they would not return to the playoffs again until 2016, and the last playoff game to be held at the Oakland Coliseum as in 2017, the Raiders were approved to relocate to Las Vegas. Heavy Metal band Metallica performed an unannounced pregame concert prior to the game, and the game’s national Anthem was performed by Joe Satriani. Until the 2019–20 NFL playoffs, this was the last AFC championship game which did not include the Baltimore Ravens, Denver Broncos, Indianapolis Colts, New England Patriots, or Pittsburgh Steelers.
Title: Cinderella (sports)
Content:  Super Bowl since Super Bowl XVIII when they were based in Los Angeles. However, Oakland lost 48–21 to Tampa Bay, who won their first title in franchise history. Until 2016, this was the Raiders' last time qualifying to play in the playoffs, and as of the conclusion of the 2018 season, this is the most recent season in which the Raiders have won a playoff game. ; 2002 Cleveland Browns — Three years since returning to the NFL following a very controversial relocation story, the Browns finished 9–7 and made the NFL playoffs for the first time since 1994. In the 
Title: Las Vegas Raiders
Content:  final two minutes, referee Ben Dreith called roughing the passer on New England's Ray "Sugar Bear" Hamilton after he hit Oakland QB Ken Stabler. The Raiders went on to score a touchdown in the final minute to win. They then defeated the Steelers 24–7 in the AFC Championship to advance to their second Super Bowl. In Super Bowl XI, Oakland's opponent was the Minnesota Vikings, a team that had lost three previous Super Bowls. The Raiders jumped out to an early lead and led 16–0 at halftime. By the end, having forced Minnesota into multiple turnovers, the Raiders won 32–14 for their first Super Bowl and post-merger 
Title: Las Vegas Raiders
Content:  to the Oilers. The Raiders defeated Stabler and the Oilers in the Wild Card game and advanced to the AFC Championship by defeating the Cleveland Browns 14–12. The Raiders slipped by the AFC West champion San Diego Chargers to advance to their third Super Bowl. In Super Bowl XV, the Raiders faced head coach Dick Vermeil's Philadelphia Eagles. The Raiders dominated the Eagles, taking an early 14–0 lead in the first quarter behind two touchdown passes by Plunkett, including a then-Super Bowl record 80-yard pass and catch to running back Kenny King. A Cliff Branch third-quarter touchdown reception put the Raiders up 21–3 in the third quarter. They would go on to win 27–10, winning their second Super Bowl and becoming the first team to ever win the Super Bowl after getting into the playoffs as the wild card team.
Title: History of the Oakland Raiders
Content:  win over the favored Philadelphia Eagles in Super Bowl XV. With the victory, the Raiders became the first ever wild card team to win a Super Bowl. Two Super Bowl records of note occurred in this game: 1) Kenny King's 80-yard, first-quarter, catch-and-run reception from Jim Plunkett remained the longest touchdown Super Bowl pass play for the next 16 years; and 2) Rod Martin's three interceptions of Eagles' quarterback Ron Jaworski still stands today as a Super Bowl record. Reflecting on the last ten years during the post-game awards ceremony, Al Davis stated "...this was our finest hour, this was the finest hour in the history of the Oakland Raiders. To Tom Flores, the coaches, and the athletes: you were magnificent out there, you really were." The team would not see a repeat performance in 1981, falling to 7–9 and a losing record for the first time since 1964.
Title: Super Bowl XXXVII
Content:  as a result of 9/11-related postponements; subsequent games, including Super Bowl XXXVIII, would have the Super Bowl played in February permanently). This was the first Super Bowl in which the league's number one-ranked offense (Raiders) faced the league's number one-ranked defense (Buccaneers). The game sometimes is referred to as the "Gruden Bowl", because the primary storyline surrounding the game revolved around Jon Gruden. Gruden was the Raiders' head coach from 1998 to 2001, and as a result of a trade then became the Buccaneers head coach in 2002. Tampa Bay, "Gruden's new team", made their first Super Bowl appearance in team history after posting a regular season record. Oakland, "Gruden's old team", advanced to their fifth Super Bowl after an regular season. Super Bowl 
Title: John Madden
Content:  to the Steelers in the AFC Championship game by a score of 16–10. In 1976, the Raiders went 13–1 in the regular season, and escaped the first round of the playoffs with a dramatic and controversial victory 24–21 over the New England Patriots. In the second round of the playoffs they defeated the Steelers 24-7 for the AFC Championship. On January 9, 1977, Madden's Raiders finally captured their first Super Bowl with a convincing 32–14 win over the Minnesota Vikings. The Raiders lost the AFC Championship Game in 1977 20–17 to the Denver Broncos. After the Raiders failed to qualify for the postseason in 1978, Madden announced his retirement on January 4, 1979, 
Title: 1976 Oakland Raiders season
Content:  The 1976 Oakland Raiders season was the team's 17th season, and 7th in the National Football League. After having appeared in the three previous AFC Championship Games – and having lost all three—the 1976 Raiders finally won the conference championship, and went on to win their first Super Bowl. After posting a 13–1 regular season record and winning their sixth AFC West championship in seven seasons, the Raiders won against both the New England Patriots and Pittsburgh Steelers to achieve the team's second Super Bowl berth. Then, on January 9, 1977, at the Rose Bowl, the Raiders won Super Bowl XI by rolling over the Minnesota Vikings 32–14. With this victory, the Raiders achieved a .941 overall record. They were the best team in the NFL in 1976. In 2012, the 1976 Oakland Raiders were named the greatest team of all time by NFL.com's "Bracketology"; a 15-day, six-round fan vote tournament that featured the 64 greatest teams from the Super Bowl era. Oakland beat the 2000 Baltimore Ravens in the final round by a .8% margin.

Question: when was the last year the raiders won the superbowl?
Answer: 1983.