This island of Greece is where Dionysius was responsible for creating the complex and futuristic Repeating Catapult.  Much like a machine gun, the Repeating Catapult was to fire an entire magazine of two-meter long arrows and decimate enemy forces.  The weapon was never fully developed due to cost and logistical inefficiencies.

Ohio is a midwestern state in the Great Lakes Region of the United States. Its capital is Columbus, and other major cities include Cleveland and Cincinnati. In 1803, Ohio was the seventeenth state admitted the Union.

After settling in Milan and working as a Renaissance defense contractor under his patron, Il Moro, da Vinci drafted mechanical military designs that explored his idealized properties of complex technical processes, which included the his interpretation of the catapult. 

Source:

Moon, F. C. (2016). Machines of Leonardo Da Vinci and Franz Reuleaux: Kinematics of Machines from the Renaissance to the 20th century. Place of publication not identified: SPRINGER.