July 31, 1863
The H.L. Hunley submarine successfully destroyed a test target in Mobile Bay with a floating contact torpedo. Built in Mobile, the iron-hulled submarine entered Confederate service in Charleston in August 1863, but sank twice during training exercises, killing thirteen men. On the evening of February 17, 1864, the Hunley engaged the USS Housatonic and became the first submarine to successfully sink an enemy ship in combat after ramming the vessel with a spar-mounted torpedo. The Hunley, however, sank soon after. Its location remained a mystery until 1995. Raised by archaeologists in 2000, the submarine is now on display at the Warren Lasch Conservation Center in Charleston, South Carolina.