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The Boston Globe

Nation

Confederate submarine mystery deepens with new clues

NORTH CHARLESTON, S.C. — 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.

The Hunley’s eight-man crew and five Union soldiers aboard the Housatonic, which was built in Boston, died in the battle.

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