The aim of this project is the adaptation and development of concepts and tools of network, complexity and environmental sciences for the analysis of Byzantium and the medieval Mediterranean and Near East. With the help of these instruments, socio-economic, religious, political and intellectual entanglements between individuals, communities, polities and localities are visualised. The dynamics of these phenomena in time and space are analysed in a qualitative and quantitative as well as comparative perspective, positioning Byzantium in a global context of pre-modern societies. This also includes the climate and environmental history of the medieval world. The project is equally located at a cutting point between humanities, social sciences, mathematics and natural sciences.