On this day in Steelers history the team won Super Bowl X, their second of four Super Bowl Championships in the 1970s.
The Pittsburgh Steelers would be the team who shone the brightest in Super Bowl X, a match that featured the Dallas Cowboys’ flashy offensive onslaught against the Steelers’ steely defense and their gritty, running attack.
Although the Cowboys offense was the buzz of the town, Lynn Swann’s acrobatic catch will always be remembered on NFL Films highlight reels

With a 29-yard touchdown pass from Roger Staubach to Drew Pearson, the Steelers took an early 7-0 lead. However, it didn’t take them long to resume the fight.
Lynn Swann and Terry Bradshaw connected for a 32-yard throw, during which Swann outran the Cowboys defender and managed to keep both feet in bounds. This allowed Bradshaw to set up Randy Grossman for a seven-yard touchdown throw, tying the score at seven. Dallas led 10–7 at the half and went into the locker room after a field goal.
In the second half, Cowboys defender Cliff Harris made fun of Roy Gerela by giving him a faux pat on the helmet after he missed his second field goal of the match. Linebacker Jack Lambert became enraged and sent Harris to the ground, setting the Steelers on fire.
The Black and Gold led 15–10 after Gerela nailed two field goals and the Steelers scored on a safety following a blocked punt. Bradshaw continued
The Cowboys fought back, but it wouldn’t be enough when Staubach’s final pass was batted by Mike Wagner and intercepted by Glen Edwards to seal the 21-17 win and give the Steelers back-to-back Super Bowl wins.Photos of Super Bowl X. The Pittsburgh Steelers defeated the Dallas Cowboys 21-17 to capture the team’s second Super Bowl victory in Miami’s Orange Bowlynn Swann and Terry Bradshaw connected for a 32-yard throw, during which Swann outran the Cowboys defender and managed to keep both feet in bounds. This allowed Bradshaw to set up Randy Grossman for a seven-yard touchdown throw, tying the score at seven. Dallas led 10–7 at the half and went into the locker room after a field goal.ynn Swann and Terry Bradshaw connected for a 32-yard throw, during which Swann outran the Cowboys defender and managed to keep both feet in bounds. This allowed Bradshaw to set up Randy Grossman for a seven-yard touchdown throw, tying the score at seven. Dallas led 10–7 at the half and went into the locker room after a field goal.