Bushnell built his submarine, the "Turtle", in early 1776 and first used it in September that year.
David Bushnell built his 'Turtle' in 1776.
Bushnell's submarine was made of wood.
It was invented by David Bushnell.
david bushnell
David Bushnell
David Bushnell
David Bushnell
David Bushnell
David Bushnell .
David Bushnell
David Bushnell
David Bushnell(1742-1824), a Yale graduate, designed and built a submarine