Turtle (also called American Turtle) was the world’s first submersible vessel with a documented record of use in combat. It was built in 1775 by American David Bushnell as a means of attaching explosive charges to ships in a harbor, for use against the Royal Navy during the American Revolutionary War.
Cool! Seems like a total death trap, but still cool.
Better than the confederate sub Hunley in the civil war, that fucker took out three of it’s own crews. Twenty-one crewmen died in the three sinkings of Hunley during her short career.
The sub was a secret Union patriot