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The Pulse Model: Genesis and Accommodation of Specialization in the Middle Niger*

Published online by Cambridge University Press:  22 January 2009

Roderick J. McIntosh
Affiliation:
Rice University

Extract

By the mid-first millennium a.d., Middle Niger cities took the form of many separate mounds clustered together. Many of these mounds may have been settlements of specialists. This distinctive city form may have had its origin in segmented, but articulated, Late Stone Age communities in the southern Sahara. The Pulse Model is an attempt to reconstruct the circumstances of environmental change and interactions among these communities that encouraged occupational specialization. The model predicts the best locations to search for evidence of early specialization, namely the several north–south trending palaeochannels of the southern Sahara. There, groups increasingly concerned with intensification of production within separate microenvironments would nevertheless have been in close contact. Climate shifts over the past several millennia create a ‘pulse’ of population movements, or shifts of ecological adaptations, along these long corridors. However, adaptation to climate change and stress incompletely explains the emergence of specialization. Tradition, myths, legends and material reinforcements of divisions between present-day ethnic and artisan groups in the Middle Niger suggest the ways in which corporate identity may have been constructed and maintained in the very distant past. If corporate identity can emerge in a form that discourages conflict between groups, the result might be increasingly specialized responses to climate change and to the economic and social opportunities of early urbanism. There should be no sharp discontinuity between the emerging specialization of the last millennia b.c. and the earlier clustered urbanism of cities such as Jenne-jeno. Middle Niger urbanism is an intensification of prehistoric social dynamics, not a revolutionary process.

Type
Prehistory of West African Urbanism
Copyright
Copyright © Cambridge University Press 1993

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101 For example, Smith, , ‘Neolithic traditions’, 140Google Scholar.

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103 Petit-Maire and Riser, ‘Holocene lake deposits’; Petit-Maire and Riser, Sahara ou Sahel?

104 Camps, G., Amekni: Neolithique Ancien du Hoggar (Mémoire du CRAPE, No. 10) (Paris, 1968).Google Scholar

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116 It would not be premature to mention an international, collaborative project planned to explore these issues in two of, potentially, the most productive southern Saharan palaeochannels. H. Bocoum of the Institut Fondamental d'Afrique Noire (Dakar) and T. Togola of the Institut des Sciences Humaines (Bamako) (with a Mauritanian co-director) will lead survey and excavation along the Vallée du Golgol (from the Middle Senegal Valley north-east to the Hodh depression) and along the Vallée du Serpent and Fala du Molodo (from the Middle Niger [Méma] north-west to the Hodh). In my opinion, this project is the most exciting archaeological work planned for West Africa in the 1990s.

117 R. J. McIntosh, ‘Early urban clusters’; McIntosh, R. J. and McIntosh, S. K., ‘From siècles’, 150–3Google Scholar.

118 McIntosh, S. K. and McIntosh, R. J., ‘From stone to metal’, 101Google Scholar.

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