The submarine, launched by the Confederate Army in the last full year of the Civil War, made history when it became the first combat submarine to ever sink a warship. But on the same night when the H.L. Hunley’s torpedo sent the USS Housatonic, along with two of its officers and three of its enlisted crew, to a watery grave in the depths of Charleston Harbor in South Carolina, the Hunley itself—along with its eight-man crew—was also claimed by the waves. snip In a study published in PLOS One in 2017, a team of researchers affiliated with Duke University announced...