Supplementary Data 1 The conventional and AMS 14C dates from the Upper Egyptian and Lower Nubian Nile valley. In this list all 14C dates from Upper Egypt and Nubia are collected, with the exclusion of dates that have a standard error of 1000 yr or more. It should be remembered that most of the dates are already the result of older pretreatment procedures, not always with sufficient correction of the fractionation. We included also dates that are not directly related to a Late Palaeolithic site but which are correlated to the Late Pleistocene Nilotic deposits.
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