Repeated Demographic-Structural Crises Propel the Spread of Large-scale Agrarian States Throughout the Old World

Repeated Demographic-Structural Crises Propel the Spread of Large-scale Agrarian States Throughout the Old World

Blog Article

I investigate the geographical consequences of demographic-structural dynamics using a spatially resolved agent-based model of agrarian empires in several Old World regions between 1500 BCE and 1500 CE.I estimate and bound key model parameters from two historical datasets.Although several very large-scale Embroidery Hoops polities (e.g.

, Roman, Persian, Tang empires) do not arise and certain geographical expansions occur at different times, overall the model suggests that factional civil wars, the result of repeated internal demographic-structural crises, can substantially account for the spread Sample Kit of large-scale agriculture throughout the Old World after the Bronze Age.