Archaeology in Eastern Africa: Recent Developments and More Dates

Abstract

Obsidian hydration dating has been successfully applied to East African archaeological sites. Chemical sourcing of obsidian artefacts has documented long-distance movement of obsidian from the Central Rift valley. A date in the ninth or eighth century b.c. has been obtained for iron objects in the Er Renk District of the Southern Sudan. Tentative culture-historical sequences are available from excavations around the Sudd and in the Lake Besaka region of Ethiopia. Archaeological research has begun in the interior of Somalia. In northern Kenya, claims that Namoratunga II is an archaeo-astronomical site have been challenged. Excavations at Mumba-Höhle and Nasera have shed new light on the transition from the Middle to Later Stone Age in northern Tanzania perhaps 20,000 to 30,000 years ago. Knowledge of the Elmenteitan Tradition has been considerably advanced by excavations in south-western Kenya. Iron-smelting furnaces with finger-decorated bricks have been discovered in south-eastern Kenya, though not yet dated. New dates falling in the last few centuries have caused first millennium a.d. dates obtained previously for Engaruka to be rejected. Excavations at several sites on the East African coast indicate that the beginnings of coastal occupation from the Lamu archipelago to Mozambique fall in the ninth century a.d. In Malawi the Shire Highlands seem to have been settled around the tenth century a.d. Investigations of large smelting-furnaces in central Malawi indicate that they were used as concentrators of poor-quality iron ore. Excavations in rock-shelters on the southern edge of the Copperbelt have produced a culture-historical sequence spanning the last 18,000 years. The western stream of the Early Iron Age was established in the Upper Zambezi valley by about the mid fifth century a.d.

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