Who invented springs?

R. Tradwell invented the first coiled spring in 1763, according to Coiling Technologies, Inc. However, non-coiled springs have been in use since the days of the bow and arrow.

Spring technology has been around since the 1300s when people used chariots as transportation, states Coiling Technologies. The chariot utilized a complex spring and suspension system that assisted in increasing mileage. The leaf spring was used on carriages in the 18th century by the French people. Coiling Technologies reveals that Leonardo Da Vinci revolutionized the pistol in 1493 by introducing a spring technology for guns that enabled users to fire single-handedly.