Plongeur [French for dive] was the first nonhuman powered submarine.		Plongeur
Past: First tests began in 1863.	It was modified with a new engine.	It was eventually sold to  another country
The Plongeur was a major in submarine technology. Using air propulsion it could move through the water at a speed of 7.2 Km/h. It could dive up to 9m.

From wikipidia