This study sheds light on the agricultural economy that underpinned the emergence of the first urban centres in northern Mesopotamia. Using δC and δN values of crop remains from the sites of Tell Sabi Abyad, Tell Zeidan, Hamoukar, Tell Brak and Tell Leilan (6500-2000 cal bc), we reveal that labour-intensive practices such as manuring/middening and water management formed an integral part of the agricultural strategy from the seventh millennium bc. Increased agricultural production to support growing urban populations was achieved by cultivation of larger areas of land, entailing lower manure/midden inputs per unit area-extensification. Our findings paint a nuanced picture of the role of agricultural production in new forms of political centralization. The shift towards lower-input farming most plausibly developed gradually at a household level, but the increased importance of land-based wealth constituted a key potential source of political power, providing the possibility for greater bureaucratic control and contributing to the wider societal changes that accompanied urbanization.

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Excavations at the 109 hectare site of Kurd Qaburstan on the Erbil plain in the Kurdistan Region of Iraq were conducted by the Johns Hopkins University in 2013 and 2014. The Middle Bronze Age (Old Babylonian period) is the main period of occupation evident on the site, and the project therefore aims to study the character of a north Mesopotamian urban centre of the early second millennium b.c. On the high mound, excavations revealed three phases of Mittani (Late Bronze) period occupation, including evidence of elite residential architecture. On the low mound and the south slope of the high mound, Middle Bronze evidence included domestic remains with numerous ceramic vessels left in situ. Also dating to the Middle Bronze period is evidence of a city wall on the site edges. Later occupations include a cemetery, perhaps of Achaemenid date, on the south slope of the high mound and a Middle Islamic settlement on the southern lower town. Faunal and archaeobotanical analysis provide information on the plant and animal economy of the second millennium b.c. occupations, and geophysical results have documented a thirty-one hectare expanse of dense Middle Bronze Age architecture in the northern lower town.

Excavations at Tell Brak in 2006–7 explored two key episodes in Mesopotamian political and social history, developing early social complexity in the fifth to fourth millennia BC and the shift from territorial state to early empire in the second millennium BC. Late Chalcolithic complexity is represented in Area TW on the main mound and at the outlying sub-mound of Tell Majnuna, while investigation of the Old Babylonian to Mitanni state-to-empire transition involved excavation in Areas HH and HN (Fig. 1). Both sets of excavations tie into our exploration of larger issues of the creation and maturation of past urban landscapes, for which Tell Brak provides a great depth of data.We would like once again to express our warmest gratitude to Dr Bassam Jamous, Director General of Antiquities and Museums, to Dr Michel Al-Maqdissi, Director of Excavations, to all their staff in Damascus, and to Sd Abdul Messih Baghdo, Director of the Antiquities Office in Hasseke, for their constant and friendly support. Financial support for the excavations was generously provided by the British School of Archaeology in Iraq, the McDonald Institute for Archaeological Research, Cambridge, the National Geographic Committee for Research and Exploration (2006), the Society of Antiquaries of London (2007), Newnham College, Cambridge and the University of Cambridge. We are extremely grateful to all those who have made this research possible.

The 1996 and 1997 seasons of the Hopkins-Amsterdam project in the Jabbul plain, western Syria, have generated new results on Bronze Age urbanism at Tell Umm el-Marra and elucidated longer-term settlement patterns in the Jabbul region. Excavation results have documented the foundation of Umm el-Marra as a regional center in the Early Bronze Age, provided new data on a period of decentralization in Middle Bronze I, and supplied evidence of the regeneration of urbanism in MB II. Faunal and archaeobotanical analysis broaden our understanding of these developments, attesting to an economy overwhelmingly dependent on the steppe environment, with an emphasis on large-scale onager hunting in MB II. Finally, a regional survey provides data on long-term demographic and socioeconomic trends, furnishing an expansive time range and spatial context for our under-standing of developmental patterns in the region. The survey results supply new information on the limits of the Uruk expansion, cycles of Bronze Age urbanization, changing patterns of steppe exploitation, and demo-graphic and agricultural extensification in the Byzantine and Early Islamic periods. Finally, a regional survey provides data on long-term demographic and socioeconomic trends, furnishing an expansive time range and spatial context for our understanding of developmental patterns in the region. The survey results supply new information on the limits of the Uruk expansion, cycles of Bronze Age urbanization, changing patterns of steppe exploitation, and demographic and agricultural extensification in the Byzantine and Early Islamic periods.* Disciplines Near Eastern Languages and Societies