Zheng He, juhng huh (1371-1435?), also spelled Cheng Ho, was the most famous navigator in Chinese history. He commanded seven large naval expeditions from 1405 to 1433. Zheng and his crews sailed the East China Sea, the South China Sea, and the Indian Ocean, reaching more than 30 lands along the coasts of Asia and Africa. Each voyage included more than 100 wooden vessels and tens of thousands of crew members.