February 17 is the anniversary of the attack and disappearance of the historic Civil War submarine C.S.S. Hunley. On February 17, 1864, the Hunley made history as the first combat submarine to sink a warship. How much do you know about this legendary submarine? Find out below!
Interested in learning more about the H.L. Hunley? Check out the content all about this famous submarine on KnowItAll.org!