
8  
  Exploration in thE World of thE MiddlE agEs
e plan was, even for Zheng, ambitious. His ships sailed from Nan-
jing on January 19, 1431. By the time they returned in the summer of 
1433  they  had  visited  Champa  (present-day  Vietnam),  Java,  Sumatra, 
Malacca, Ceylon (Sri Lanka), and the Indian seaport of Calicut. Part of 
the fleet had sailed to the great Persian Gulf port of Hormuz and the 
Arabian ports of Dhofar, Aden, and Jidda. e other part of the fleet had 
crossed the Indian Ocean to East Africa. ese ships visited the trad-
ing stations of Mogadishu and Brava (both in present-day Somalia) and 
of Malindi (Kenya). Zheng’s fleet had sailed an amazing 12,600 miles 
(
2
0,277 kilometers), sometimes covering more than 100 miles (160.9 km) 
a day. Although no definite evidence exists, recent scholarship suggests 
that Zheng probably died in India on the return voyage. Nevertheless, he 
became a national hero in China and the subject of novels and plays.
china’s imperial policies
Chinese navigators and traders had worked in the South China Sea and 
the Indian Ocean for 1,000 years. e policy of Zheng’s original patron, 
the Yongle emperor, was one of close control. Yongle fine-tuned China’s 
unique system  of tributary  trade, under  which  the  goods  brought to 
China by foreign merchants and ambassadors were given to the emperor 
as gifts. e foreigners were rewarded with Chinese luxury goods of at 
least equal value, chiefly silks, porcelain, and horses. e emperor also 
sent officials to foreign rulers with gifts. In return, the rulers sent more 
tribute back to China. Carrying these ambassadors and luxury goods to 
and from China was central to Zheng He’s mission.
Already centuries ahead of its rivals technologically, Zheng’s expe-
dition was an achievement that made China the dominant power in the 
kingdoms bordering the China Sea and Indian Ocean. Still, after the 
triumphant conclusion of the voyage, Emperor Xuande suddenly turned 
his back on the outside world. He broke up the imperial fleet, destroying 
some vessels and reassigning others to river service. In about 1480, a 
(opposite page) About half a century before the explorations of Christopher 
Columbus and Ferdinand Magellan, China’s Zheng He made seven 
historical voyages to promote his country’s wealth and power. The seventh 
voyage of the Treasure Fleet would travel 12,600 miles (20,277 km), 
sometimes covering more than 100 miles (160.9 km) a day.