What are some important dates for the submarines?

Answer 1

The first diagram and plan for a submarine was published in 1580 CE by William Bourne. In 1623, Cornelius Drebbel was appointed as court inventor and created what is believed to be the first working submarine. In 1654, the Rotterdam boat submarine was invented with the intent to attack an enemy. In 1696, Denis Papin built two submarines with an internal air pump. In 1776, David Bushnell created the first submarine that attacked an enemy ship. In 1855, Wilhelm Bauer built the Diablo Marin which made 134 dives. In 1861 the U.S Navy commissioned the production of the Alligator submarine.