Adriatic was a three-masted, two deck, packet ship built in 1861 by Curtis & Tilden, Boston, Massachusetts, United States.

On August 12, 1864, Adriatic was embarked from London, England en route to New York City carrying 163 German immigrants and 100 US citizens.

[2] On July 7, 1864, during the American Civil War, Adriatic, Captain Richard H. Moore, sailed from London, England to New York City with 163 German immigrants, 100 US citizens, and 100-tons of coal.

On August 12, 1864, she had made the New Jersey coast, 35 miles off Montauk, New York, when she met Tallahassee, which collided with Adriatic.

The wreckage lies in 220 feet (67 m) of water 30 miles (48 km) off the eastern edge of Long Island, New York.

The team of divers was able to establish conclusive proof after connecting artifacts recovered with visits to the National Archives.