Title: Bushnell's submarine
Subjects: Submarine warfare, Submarines (Ships), Naval operations, History, Naval Military operations, Submarines, Bushnell, david, 1740-1826, Submarines (ships), United states, history, revolution, 1775-1783, naval operations
Places: United States
People: David Bushnell (b. 1740)
Time periods: 18th century, Revolution, 1775-1783