Who was Zheng He, and what did
he do?

"Zheng He was a Chinese mariner, explorer, diplomat, fleet admiral, and court eunuch during China's early Ming dynasty. Zheng He was a Chinese explorer who lead seven great voyages on behalf of the Chinese emperor. ... His seven total voyages were diplomatic, military, and trading ventures, and lasted from 1405 – 1433. However, most historians agree their main purpose was to promote the glory of Ming dynasty China."

Hope this helps! :)

the completion of the erie canal spurred the first great westward movement of american settlers, gave access to the rich land and resources west of the appalachians and made new york the preeminent commercial city in the united states.

the main inference that can be drawn from jean jacques rousseau's book the social contract is: a. people can enjoy civil and physical freedom, even if it sometimes harms society.