One of World War I's biggest mysteries has finally been solved after a 103-year search.
On Sep. 14, 1914, Australia's first submarine, the HMAS AE1, disappeared off the coast of Rabaul, Papua New Guinea.
One of World War I's biggest mysteries has finally been solved after a 103-year search.
On Sep. 14, 1914, Australia's first submarine, the HMAS AE1, disappeared off the coast of Rabaul, Papua New Guinea.