In 1521 Herman Cortes conquer the Aztec empire decline in Mexico for Spain at first they Aztec people were curious to know more about the Spaniards the Aztec people on earth the Spaniards in Cortez took over the Aztecs city in slaved number of the people living there

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