Super Bowl of the Super Bowl, while the Jaguars (1995) and Texans (2002) are both recent NFL expansion teams. (Detroit, Houston, and Jacksonville, however, have hosted a Super Bowl, leaving the Browns the only team to date who has neither played in nor whose city has hosted the game.) The Minnesota Vikings won the last NFL Championship before the merger but lost to the AFL champion Kansas City Chiefs in Super Bowl IV. The Green Bay Packers won the first two Super Bowls (Known as the AFL-NFL World Championship Game for these first two contests), defeating the Kansas City Chiefs and Oakland
Super Bowl 14–7 victory in Super Bowl VII, becoming the first and only team to finish an entire perfect regular and postseason. The Dolphins would repeat as league champions by winning Super Bowl VIII a year later. In the late 1970s, the Steelers became the first NFL dynasty of the post-merger era by winning four Super Bowls (IX, X, XIII, and XIV) in six years. They were led by head coach Chuck Noll, the play of offensive stars Terry Bradshaw, Franco Harris, Lynn Swann, John Stallworth, and Mike Webster, and their dominant "Steel Curtain" defense, led by "Mean" Joe Greene, L. C.