Urban studies is based on the study of the urban development of cities. This includes studying the history of city development from an architectural point of view, to the impact of urban design on community development efforts. The core theoretical and methodological concerns of the urban studies field come from the social science disciplines of history, economics, sociology, geography, political science, anthropology, and the professional fields of urban planning, architecture, landscape architecture, and urban design. Urban studies helps with the understanding of human values, development, and the interactions they have with their physical environment. History The study of cities has changed dramatically from the 1800s over time, with new frames of analysis being applied to the development of urban areas. The first college programs were created to observe how cities were developed based on anthropological research of ghetto communities. In the mid-1900s, urban study programs expanded beyond just looking at the current and historical impacts of city design and began studying how those designs impacted the future interactions of people and how to improve city development through architecture, open spaces, the interactions of people, and different types of capital that forms a community. Urban history plays an important role in this field of study because it reveals how cities have developed previously. History plays a large role in determining how cities will change in the future. Such areas change continuously as part of larger processes and create new histories that researchers study on both large-scale and individual levels. Overall, three different themes have influenced how researchers have and will continue to study urban areas: Spatial structures: Reflect how the city is physically organized Processes that support spatial structure: Question how the city's structure operates Normative Analysis: Construct opinions supported by facts to promote better urban planning methods Scholars have also researched how cities outside of the United Kingdom and the United States have developed, but only to a limited degree. Urban history previously focused mostly on how European and American cities developed over time, instead of focusing on how non-European cities developed. Additional geographic areas researched in this field include South Africa, Australia, Latin America, and India. This is changing as more research is performed in developing economies, leading to more contextual urban and infrastructural development in various parts of the world. The racial segregation of urban residents in the United States has played an important role in developing this