This document discusses the history and development of urban sociology. It begins by defining urban sociology and its goals of studying urban structures, processes, changes, and problems to inform planning and policymaking. It then discusses some of the early contributors to urban sociology in Europe in the late 19th century, including Ferdinand Tonnies, Emile Durkheim, and Friedrich Engels, who examined the social impacts of industrialization and urbanization. The document also highlights the influential work of George Simmel and his examination of how urban life transforms individual consciousness. A major section focuses on the development of urban sociology at the University of Chicago in the early 20th century, led by Robert Park and Ernest Burgess,