Zheng He's voyages to the West were the largest in ancient China, with the most ships (more than 240 ships), the most sailors, and the longest voyage. It was more than half a century earlier than European countries and was a direct reflection of the power of the Ming Dynasty.Zheng He's navigation far surpassed that of Portuguese, Spanish and other navigators nearly a century later, such as Magellan, Columbus, Vasco da Gama and others. He can be called the pioneer of the Age of Discovery and the only Oriental., and proposed the theory of sea power five hundred years earlier than Mahan., it is even said that Zheng He was the first to discover America, Australia, and Antarctica.