The concept of complex systems allows for a better understanding of the
interplay between social and environmental factors for the emergence and
maintenance of maritime infrastructure and route systems in the ancient
and medieval period. Complexity theory and network analysis provide a
analytical framework to describe social configurations (cities, maritime
communities, polities) and environmental phenomena (hydrosphere,
climate) as complex systems, entangled via mechanisms of feedbacks,
adaptation or disruption. In this volume, this approach is applied on
various phenomena of maritime history as discussed within the DFG-funded
Special Research Programme (SPP 1630) "Harbours from the Roman Period to
the Middle Ages" (ww.spp-haefen.de).