Since then , the team has taken part in the NFL playoffs 29 times , reaching four Super Bowls in 1970 , 1974 , 1975 and 1977 .
The team was established in 1961 and is part of the National Football League 's NFC North division .
Since then , the team has taken part in the National Football League playoffs 29 times , reaching four Super Bowls in 1970 , 1974 , 1975 and 1977 .
The team was established in 1961 and is part of the National Football League 's NFC North division .