Urbanization, proto-industrialization, and virtual water in the medieval Middle East.

This article is an attempt to understand a mesh of complex relationships among tangible and intangible socio-economic factors that turned a desert city into the headquarters of one of the mighty polities in the Middle East in the fourteenth century CE. This paper argues that proto-industrialization led to the growth of 'virtual water' that helped the city of Yazd, in central Iran, to break free from its water limitation for the first time in its history. Yazd was almost absent in history until the twelfth century, as a peripheral oasis whose sparse population lived off subsistence agriculture irrigated by qanat systems (groundwater-mining subterranean channels). Following the Mongol invasion in the thirteenth century, the influx of landless refugees changed the relations of production and paved the way for proto-industrialization whose development hinged on skill and capital rather than water and land. Sufism and waqf (endowment tradition) contributed to the expansion of trading routes that facilitated the mobility of goods and people. The qanats were urbanized, and Yazd became an industrial hub where raw materials were processed into tradable products with considerable value added. This paper contributes to a broader understanding of the historical geography of the arid Middle East. • The Iranian city of Yazd rode out the Mongol invasion in the thirteenth century. • A surge of refugees upset the balance between population and agricultural resources. • Abundance of skilled workers led to a Middle Eastern mode of proto-industrialization. • Proto-industrialization engendered virtual water as an adaptation strategy. • Virtual water made a transition to a non-hydraulic society. [ABSTRACT FROM AUTHOR]