From the South Dakota Battleship Memorial:

Historic World War II Impact

Because of the World War II exploits against the Japanese in the South Pacific, this mighty battleship became a legend before she was a year old. She caught the fancy of the American people when her heroics were reported in newspapers under the titles of “Battleship X” and “Old Nameless”. “Old Incredible” would be an equally appropriate name for her.

Life aboard the South Dakota was filled with moments of terror followed by days of restless uncertainty. The men who called the South Dakota their home knew she could take a beating and still get them back to port. They also recognized that their captains were experienced sailors who knew how to handle the mammoth ship through the fiercest of battles and how to weather the mightiest of storms.

Most warships are built for an active career of 20 or 30 years. The USS South Dakota was in commission less than five. In that short lifetime she covered herself with more honors and glory than most ships realize in much longer periods of service. She truly was a legend before she was a year old