January 28, 2013
The Confederate submarine H.L. Hunley sits in a conservation tank after a steel truss that had surrounded it was removed. Scientists say a pole on the front of the submarine designed to plant explosives on enemy ships may hold a key clue to its sinking during the Civil War.
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Researchers say they may have the final clues needed to solve the mystery of the Confederate submarine H.L. Hunley, which never resurfaced after it became the first sub in history to sink an enemy warship, taking its eight-man crew to a watery grave.