An article bringing together a range of scholars from a variety of disciplines – including history, archaeology, religious studies, sociology and anthropology – currently part of the Humanities Centre for Advanced Studies in the Humanities "Religion and Urbanity: Reciprocal Formations", based at the Max Weber Centre for Advanced Cultural and Social Studies at the University of Erfurt. The article summarises and recapitulates some of the research results from the years 2018 until 2022. The "Religion and Urbanity" group argues that it is possible to draw broader conclusions about the reciprocal formation of religion and urbanity by taking a historical approach. The dynamics of this reciprocal formation are context-specific; however, only by taking a long-term perspective on a wide range of cities can we fully grasp the significance of urbanity for religion and the importance of religion in shaping urbanity. The ‘reciprocal formation of religion and urbanity’ is not just some further approach but has been developed into a method: an organised and interrelated set of questions that can be addressed in a cross-cultural and cross-epochal manner towards a wide range of historical subjects. The research group "Religion and Urbanity: Reciprocal Formations" (FOR 2779) has been funded by the German Research Foundation/Deutsche Forschungsgemeinschaft (DFG) since 2018 and in 2022 was successfully evalutated for a second funding period (until 2026). Research results are published continuously via the open access platform and journal "Religion and Urbanity Online" (de Gruyter): https://doi.org/10.1515/urbrel