New technologies helped marine archaeologists recover the H.L. Hunley, a Civil War submarine Explore Subscribe Newsletters Content Licensing Our Partners Terms of Use ...

New technologies helped marine archaeologists recover the H.L. Hunley, a Civil War submarine National Treasure: The Mold Behind the Miracle of Penicillin (04:55) The Mysterious Death of Edgar ...

Originally built in 1863 for the Confederate Army, the H.L. Hunley became the world's first successful combat submarine. It was suddenly lost at sea in 1864 and remained so until 1995 when it was ...