Crossbow (5th century BCE)

The crossbow's trigger mechanism, developed in 5th century BCE China, enabled a draw weight of 50 kilograms—double that of a contemporary longbow—with a lock time under 0.2 seconds. This weapon outperforms #5's Silk by its direct military impact: it allowed 80% of Qin soldiers to pierce bronze armor at 300 meters, a range 50% greater than the average Warring States bow. Its repeating variant printed up to 12 bolts per minute, a fire rate triple that of the runner-up anywhere in the ancient world.