The C.S.S. Hunley, the world’s first successful combat submarine, sinks during a test run on October 15, 1863, killing its inventor and seven crewmembers. The submarine was developed by the Confederate army and was recovered, later becoming the first submarine to sink a ship in battle. However, its first successful mission was also its last—the Hunley sank before it returned to Charleston, taking yet another crew down with it. The vessel was raised in 2000, and is now on exhibit in Charleston. For more information on this event, click here.
Kate Boehm Jerome. Civil War Sub: the mystery of the Hunley.
Recounts events surrounding the mysterious sinking of the Confederate submarine, the H.L. Hunley, and its recent recovery from deep in the waters off the coast of South Carolina.