Analysis of information sources in references of the Wikipedia article "Lower Nubia" in English language version.
... Qasr Ibrim is the only in situ site left in Lower Nubia since the flooding of the Nile valley
Qasr Ibrim is critically important in a number of ways. It is the only site in Lower Nubia that remained above water after the completion of the Aswan high dam.
"Two Afro-Asiatic languages were present in antiquity in Nubia, namely Ancient Egyptian and Cushitic.
"The Blemmyes are another Cushitic speaking tribe, or more likely a subdivision of the Medjay/Beja people, which is attested in Napatan and Egyptian texts from the 6th century BC on.
"From the end of the 4th century until the 6th century AD, they held parts of Lower Nubia and some cities of Upper Egypt.
"The Blemmyan language is so close to modern Beja that it is probably nothing else than an early dialect of the same language In this case, the Blemmyes can be regarded as a particular tribe of the Medjay.
{{cite journal}}: Cite journal requires |journal= (help)"In antiquity, Afroasiatic languages in Sudan belonged chiefly to the phylum known as Cushitic, spoken on the eastern seaboard of Africa and from Sudan to Kenya, including the Ethiopian Highlands.
"The toponymic data in Egyptian texts has broadly identified at least three linguistic blocs in the Middle Nile region of the second and first millennium BCE, each of which probably exhibited a great degree of internal variation. In Lower Nubia there was an Afroasiatic language, likely a branch of Cushitic. By the end of the first millennium CE this region had been encroached upon and replaced by Eastern Sudanic speakers arriving from the south and west, to be identified first with Meroitic and later migrations attributable to Nubian speakers.