Did David Bushell invent the Torpedo submarine?

No, David Bushnell did not invent the torpedo submarine, but he is credited with creating the first operational submarine, known as the Turtle, during the American Revolutionary War. The Turtle was designed to attach explosive charges to enemy ships, but it did not utilize torpedoes as we understand them today. The concept of the torpedo submarine evolved later, with significant advancements made in the 19th and 20th centuries.