Super Bowl history · Dynasties take shape
The 1970s: perfection, the Steel Curtain and football's first dynasties
Miami completed the perfect season, Pittsburgh built a four-title machine and Dallas became a permanent character in the league's championship story.
What defined this era
Miami completed the perfect season, Pittsburgh built a four-title machine and Dallas became a permanent character in the league's championship story.
Defense and the running game set the decade's championship terms.
The perfect season became an immortal benchmark.
Repeated contenders made the Super Bowl a yearly national ritual.
Championship timeline
How the Super Bowl changed
1971–73
Miami reaches perfection
After losing Super Bowl VI, Don Shula's Dolphins went unbeaten in 1972 and repeated the next season. Their balanced backfield and No-Name Defense made perfection sustainable rather than theatrical.
1974–76
Pittsburgh's defense takes control
The Steelers won consecutive titles behind the Steel Curtain, while Dallas returned with a roster deep enough to make championship contention feel routine.
1977–79
The Steelers–Cowboys rivalry decides the decade
Dallas won Super Bowl XII, but Pittsburgh answered by defeating the Cowboys in Super Bowl XIII and then repeating, completing four championships in six seasons.
Watch the era