1. The Scale of the Fleets Defied Easy Comparison
The treasure fleets assembled under Zheng He were extraordinary by any measure available to the early fifteenth century. Estimates of ship sizes and fleet compositions vary among scholars and are contested, but even cautious readings of the Ming records suggest vessels far larger than anything European shipbuilders were producing at the time. Crews ran to tens of thousands of men across multiple ships, and the logistics of provisioning them required a supply chain that itself represented a feat of state organisation. The fleets carried not just sailors and soldiers but diplomats, translators, physicians, and specialists in trade and protocol.
Why it matters: The sheer scale matters because it establishes that China's subsequent retreat from maritime power was a political choice, not a technological limitation. The capacity existed and was then deliberately abandoned.