The US Navy bought their first-ever submarine called the USS Holland or SS-1.
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The USS Kearsarge sank the CSS Alabama off the coast of Cherbourg, France.
Isaac Briggs & William Longstreet was awarded a patent for the first steamboat in the US.
Icon of the Seas, the largest cruise ship in the world, embarked on its maiden voyage from Miami.
The San Jose, which sank in 1708, was found near Columbia.
The USS Indianapolis warship, which sank during World War II, was discovered in the Pacific Ocean 3.4 miles below the surface.
