1402
The Ming Yongle Emperor begins his 22-year reign in China
 Zheng
YU ZHENG/CHINASTOCK



1405
Zheng He's fleet leaves Nanjing on its first voyage



1406
Ptolemy's Geography is translated into Latin and changes the way Europeans look at the world



1406
The Chinese fleet reaches Calicut on the west coast of India



1411
Zheng He invades Sri Lanka and captures its King



1415
Defeating an army of thousands, Zheng He captures the usurper to the Sumatran throne and sends him to China, where he is executed
Hormuz
MARY EVANS PICTURE LIBRARY

1415
Zheng He's fleet reaches Hormuz and explores the Middle East



1415
Henry the Navigator, at the head of a Portuguese armada, defeats the Moors at Ceuta in Morocco



1417
Zheng He bolsters Cochin against neighboring rival Calicut
Mogadishu
RHYTHMS MONTHLY

1418
Meeting resistance, the Chinese armada shells a walled town near Mogadishu in its first trip to the East African coast



1420
Portuguese sailors reach the Madeira Islands and begin to explore the west coast of Africa



1427
Portuguese ships sail to the mid-Atlantic Azores, 1,500 km from Lisbon
 Tomb
DAVID MCINTYRE/BLACK STAR FOR TIME



1433
Zheng He, 62, dies and is most likely buried at sea, and not in his tomb in Jiangsu province



1434
Portugal's Gil Eanes rounds West Africa's dreaded Cape Bojador, off the Western Sahara
 Boat
CHINASTOCK



1436
China issues an imperial ban on the construction of oceangoing ships



1443
Henry the Navigator makes Cape Sagres the center of a movement promoting navigation, astronomy and cartography



1448
Portugal establishes a fort on Arguin Island off today's Mauritania