“Age of Exploration” Voyages of Zheng He (1405-33 CE) During the reign of Yung Lo, several naval expeditions were sent to India, Persia, and Africa. Voyages of Zheng He (1405-33 CE) These voyages were under the leadership of Zheng He. Each expedition included hundreds of ships and thousands of sailors. Some ships were over 440 ft. long and carried 1,000 men. Voyages of Zheng He (1405-33 CE) In contrast, Columbus’ fleet only had three ships, the largest only 115 ft. long and carried 40 men. Voyages of Zheng He (1405-33 CE) After 1433, the Chinese government launched no further expeditions. In 1436, the emperor forbade building ships for overseas voyages. While Spain and Portugal explored and claimed new lands, China withdrew from sea voyage. Reasons China did not explore the world 1. The Chinese government had an inadequate system of collecting taxes. Spending exceeded revenue. 2. Chinese believed that their civilization was superior to all others, so foreign goods were inferior, and there was little to learn from foreigners. Reasons China did not explore the world 3. Neo-Confucian scholars held many important government posts. Their philosophy suppressed the desire for worldly things. So trade was held in contempt. 4. In the mid-1400s, Mongols began frequently attacking China’s northern border.