The desiccation of the Sahara, commenced in the 6th millennium B.C., has been considered as the main cause of the Neolithisation in North Africa. At least in the Middle Nile region, however, it is necessary to reflect upon a more complex process conditioned to a large extent by a high density of occupation and supposed intra-societal pressures in the Late Mesolithic.
The paper presents theses based on the results of the hitherto archaeological and natural scientific research at Jebel Sabaloka in Central Sudan.