The Age of Discovery, also known as the Age of Exploration and the Great Navigations, was a period in history starting in the early 15th century and continuing into the early 17th century during which Europeans engaged in intensive exploration of the world, establishing direct contact with Africa, the Americas, Asia and Oceania and mapping the planet. Historians often refer to the 'Age of Discovery' as the pioneer Portuguese and Spanish long-distance maritime travels in search of alternative trade routes to "the Indies", moved by the trade of gold, silver and spices.
The Age of Discovery can be seen as a bridge between the Middle Ages and the Modern era, along with its contemporary Renaissance movement, triggering the early modern period and the rise of European nation-states. Accounts from distant lands and maps spread with the help of the new printing press fed the rise of humanism and worldly curiosity, ushering in a new age of scientific and intellectual inquiry. European overseas expansion led to the rise of colonial empires, with the contact between the Old and New Worlds producing the Columbian Exchange: a wide transfer of plants, animals, foods, human populations (including slaves), communicable diseases, and culture between the Eastern and Western hemispheres, in one of the most significant global events concerning ecology, agriculture, and culture in history. European exploration allowed the global mapping of the world, resulting in a new world-view and distant civilizations acknowledging each other, reaching the most remote boundaries much later.
Zheng He (1371–1433; simplified Chinese: 郑和; traditional Chinese: 鄭和; pinyin: Zhèng Hé), also known as Ma Sanbao (simplified Chinese: 马三宝; traditional Chinese: 馬三寶) and Hajji Mahmud Shamsuddin (Arabic: حاجي محمود شمس الدين) was a Hui-Chinese mariner, explorer, diplomat and fleet admiral, who commanded voyages to Southeast Asia, South Asia, the Middle East, East Africa, and the Horn of Africa collectively referred to as the Voyages of Zheng He or Voyages of Cheng Ho from 1405 to 1433.
Zheng, born as Ma He (馬和 / 马和), was the second son of a Muslim family which also had four daughters, from Kunyang, present day Jinning, just south of Kunming near the southwest corner of Lake Dian in Yunnan.
He was the great great great grandson of Sayyid Ajjal Shams al-Din Omar, a Persian who served in the administration of the Mongolian Empire and was appointed governor of Yunnan during the early Yuan Dynasty. Both his grandfather and great-grandfather carried the title of Hajji, which indicates they had made the pilgrimage to Mecca. His great-grandfather was named Bayan and may have been a member of a Mongol garrison in Yunnan.