How long did Zheng He's seven voyages to the West last?

Zheng He's first voyage began in the third year of Yongle (1405), and his last voyage ended in the eighth year of Xuande (1433), counting seven times. Zheng He was appointed as an envoy, and the fleet sailed to the west of Borneo (the so-called "Western Ocean" in the Ming Dynasty), hence the name.

On the seventh voyage to the Western Ocean, Zheng He, the eunuch of Sambo, led a fleet from Nanjing, assembled at Liujiagang, Taicang, Jiangsu, docked at Taiping Port, Changle, Fuzhou, Fujian, and sailed to the western Pacific Ocean and the Indian Ocean, visiting more than 30 countries and regions.

These include Java, Sumatra, Sulu, Pahang, Zhenla, Guri, Siam, Bangra, Adan, Tian Fang, Zoufal, Hulumusi and Mugudu. At present, it is known as far as East Africa and the Red Sea. ?

Zheng He's voyage to the Western Ocean was the largest and longest voyage in ancient China, with the largest number of ships and sailors. It is also the largest series of maritime expeditions in the world history before the voyage of the great discovery of European geography at the end of 15.

Extended data:

Zheng He's seven voyages to the West pushed China's ancient marine career to the peak of development and made important contributions to human marine civilization. Mainly manifested in:

First, the Asian-African intercontinental route was opened, paving the way for westerners to sail in Asia and Africa.

When Portuguese navigator Da Gama reached the east coast around the Cape of Good Hope along the west coast of Africa, the locals told us that China people had visited several times decades ago. With the help of Arab navigators, they successfully reached India along the route opened by Zheng He's fleet.

2. I have made some marine expeditions to the western Pacific Ocean and the Indian Ocean, and collected and mastered a lot of marine scientific information.

Zheng He's nautical charts were drawn through a large number of marine surveys. This kind of marine exploration activity is more than 400 years earlier than the earliest marine survey recorded by British Challenger (1872- 1876).

Third, the strategic layout of the navigation area.

According to his mission and marine knowledge, Zheng He chose Zhancheng, Malaga, Jiugang, Guli and Hulumos as the key areas for marine development, which is conducive to expanding the scope of overseas transportation and trade.

Zheng He's brilliant achievements belong to China and the world. Zheng He devoted his whole life to cultural exchanges and navigation between China and foreign countries.

Baidu Encyclopedia-Zheng He