<p>In the Ptolemaic station of Bi'r Samut (3rd cent. B.C.) on the desert-road between Edfu and Berenice, the same African nomads were called Trogodytai in Greek and Blhm.w in Egyptian. In this word we recognise the Blemmyes of Greek and Latin literature and of documents from late antiquity. And yet, three centuries later, these nomads were simply called Barbaroi in the Roman garrisons of the Eastern Desert. From this discovery came the idea to pu...