1st 5 SB wins for the Pittsburgh Steelers

Super Bowl IX

Jan 12, 1975

https://en.wikipedia.org/wiki/Super_Bowl_IX

Super Bowl X

Jan 18, 1976

https://en.wikipedia.org/wiki/Super_Bowl_X

https://en.wikipedia.org/wiki/Super_Bowl_XIII

Jan 21, 1979

https://en.wikipedia.org/wiki/Super_Bowl_XIV

Jan 20, 1980

Super Bowl XL

Feb 5, 2006