Before China became unified under one emperor, it was made up into several different kingdoms that were constantly at war with one another. Then in 221BCE, the defeated the other states. The ruler was called and became the 1st Emperor of China

Urban growth invariably feeds increased commercialization and industrialization. it requires continually expanding land areas. when urbanization rates are high, and countries do not have the institutional and managerial capacities or economic wherewithal to manage such rapid growths, they exert intense pressure on the types and nature of the resulting settlements. they contribute to the development of overcrowded slums and shanty towns without adequate essential services and necessary infrastructure.-by asit k. biswas and cecilia tortajada

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