Radiocarbon data from 150 archaeological excavations in the now hyper-arid Eastern Sahara of Egypt, Sudan, Libya, and Chad reveal close links between climatic variations and prehistoric occupation during the past 12,000 years. Synoptic multiple-indicator views for major time slices demonstrate the transition from initial settlement after the sudden onset of humid conditions at 8500 B.C.E. to the exodus resulting from gradual desiccation since 5300 B.C.E. Southward shifting of the desert margin helped trigger the emergence of pharaonic civilization along the Nile, influenced the spread of pastoralism throughout the continent, and affects sub-Saharan Africa to the present day.

Unlike wood charcoal, as found admixed to other cultural remains, ostrich eggshells can be of more direct significance in 14C dating, especially if they were processed to form, eg, eggshell beads. Normally the time span between laying the egg and working the shell beads is short enough to be negligible for 14C dating purposes. Another advantage of eggshell dating is that the carbonate of the shell seems to keep exceptionally well over the millennia, whereas, especially in surface sites in a desert environment, organic material such as wood, charcoal or bone protein tends to decompose. With few comparative test samples, we thought ostrich egg samples would yield 14C dates somewhat too young. The deviation is, however, balanced by performing 13C analyses and a correction for isotope fractionation of ca 350yr.

No abstract

No abstract

In 1990, about 30 km southwest of Dakhla oasis, the most remote settlement in Egypt’s Western Desert, a hieroglyphic rock inscription was discovered that turned out to be the first clear evidence of an Ancient Egyptian presence so far into the Sahara (Burkard 1997). The short text states that a higher official named Meri went out to meet (?) oasis dwellers. Details of translation, interpretation and palaeographic dating of the text are a matter of discussion among Egyptologists, but it clearly seems to be of Old or Early Middle Kingdom origin. The home of the ‘oasis dwellers’ can reasonably be inferred as lying further west or southwest. However, the nearest places with permanent water in these directions are the Kufra Oasis in Libya and the wells of Djebel Uweinat, which lie, respectively, some 600 km and 500 lan away. How was it possible to master such distances under the then already prevailing hyperarid conditions by the only available means of transportation, a train of donkeys that have to drink at least every three days?