An expeditionary fleet led by Zheng He set sail for foreign regions of the South China Sea and the Indian Ocean, marking the start of Ming China's treasure voyages.

Zheng He was a Chinese eunuch, admiral and diplomat from the early Ming dynasty, who is often regarded as the greatest admiral in Chinese history. Born into a Muslim family as Ma He, he later adopted the surname Zheng conferred onto him by the Yongle Emperor.

The Ming dynasty, officially the Great Ming, was an imperial dynasty of China that ruled from 1368 to 1644, following the collapse of the Mongol-led Yuan dynasty. The Ming was the last imperial dynasty of China ruled by the Han people, the majority ethnic group in China. Although the primary capital of Beijing fell in 1644 to a rebellion led by Li Zicheng, numerous rump regimes ruled by remnants of the Ming imperial family, collectively called the Southern Ming, survived until 1662.

The Ming treasure voyages were maritime expeditions undertaken by Ming China's treasure fleet between 1405 and 1433. The Yongle Emperor ordered the construction of the fleet in 1403. The grand project resulted in seven far-reaching ocean voyages to the coastal territories and islands of the South China Sea and Indian Ocean. Admiral Zheng He was commissioned to command the fleet for the expeditions. Six of the voyages occurred during the Yongle Emperor's reign and the seventh voyage occurred during the Xuande Emperor's reign. The first three voyages reached up to Calicut on India's Malabar Coast, while the fourth voyage went as far as Hormuz in the Persian Gulf. In the last three voyages, the fleet traveled up to the Arabian Peninsula and East Africa.