How Does a Metropolis Come Into Existence?

Cities have always attracted people. They have provided more opportunities for educational, professional, material, social, or personal betterment. Although living in the city, in addition to providing numerous opportunities, is also associated with a lot of risks and disadvantages, and many city dwellers in different moments of their lives increasingly often decide to leave for a place in the middle of nowhere, the attraction of cities is not decreasing. Quite the contrary. It is estimated that by the end of this century, nearly 90% of the population will live in cities or in their vicinity. The importance of metropolitan areas will also systematically increase, as the population will concentrate around them.