Your replay is rich in information and analysis but one error point that it link early Sudan (civilisation) with just Karma, Napta and Merowi that flourish in the late Millennium around BC when you know that the early Egypt itself was marginalised part of (Sudan) Millenniums ago that time.
My prove of that is so simple that is rote by early Egyptian kings in the โEdfo Textโ On John G. Jacksonโs book about the African civilizations; The Edfu Text is an important source document on the early history of the Nile Valley.
Also in wikipedia; http://en.wikipedia.org/wiki/History_of_Sudan#Prehistory you can get this line; excavation of archaeological sites on the Nile above Aswan has confirmed human habitation in the river valley during the Paleolithic period that spanned more than SIXTY THOUSAND YEARS of Sudanese history.
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