Original: The original all-steel 4,105-seat North stands were erected in 1958, and in 1962 and 1968 the upper decks were added to the East and West sides, respectively, bringing capacity to its all-time high of 58,121.
Simplified: The original all-steel 4,105-seat North stands were built in 1958. In 1962 and 1968 the upper decks were added to the East and West sides bringing capacity to its all-time high of 58,121.