Who wrote the book, the wealth of nations

An Inquiry into the Nature and Causes of the Wealth of Nations, better known by its shortened title The Wealth of Nations, was written by Adam Smith in 1776.

the great wall of china worked as a defense for the feudal states of the zhou dynasty to the north. during the warring states period more walls were put up to defend the borders of the different kingdoms. it was semi successful because despite the wall, the mongols eventually conquered china also the great wall provided protection to the economic development and cultural progress, safeguarded the trading routes such as the silk road, and secured transmission of information and transportation. @jayxboof

when he becomes king