In this section, the significance of urbanism is explored through the lens of early societies, particularly in Mesopotamia. Urban centers grew as economies transitioned from purely agricultural to diversified forms of trade, craft manufacturing, and services. The division of labor became essential, as individuals specialized in specific trades, necessitating interaction among different sectors of society. Trade routes were developed to import resources that were scarce in urban areas, prompting the establishment of organized trade networks and the need for written records to manage regulations and transactions. This interconnectedness fostered the emergence of complex social hierarchies and governance structures. The ability to write down transactions and histories correlates with the cultural and intellectual evolution of urban societies, as literacy spread and became essential for administration and societal functions.