Pelopidas being saved in combat - Pelopidas would later go on to lead the Sacred Band of Thebes, a military unit of all male-couples ( lemmy.world )
Off to Commit the First Act of Submersible Warfare on the Brits (1775) ( lemmy.world )
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.