Answer:
To establish trade relationships, explore new lands, and increased China's influence.
Explanation:
Under admiral Zheng He, China got hold over the Indian Ocean in the 15th century. He went to several expeditions and opened trading connection with South Asia. In Asia, he conducted trade in south Asia by exporting silk and porcelain in return for other goods. Silk during the early years recognised as a luxury thing and worn by the aristocracy, including emperors and nobles.
Hernan cortes was aided by Spain to get gold and silver from the Aztecs or just to explore then he found the Aztec empire. He wasn't aided very well in troops, so sense they carried small pox the Aztecs got infected which killed a big majority of them while the conquistadors also attacked. <span />
The exact date is unknown but between 550 bc and 539 bc.
