The results of cultural anthropological study among the people of the Sudan and Sahara do not always yield definite and conclusive results with regard to ethnic groupings and cultural contacts in the past. On the other hand the Sudanese migrations and contacts of the past as portrayed in the bizarre, and often allegorical stories told by the Sudanese people themselves with regard to their origins and antecedents, often seem so much open to doubt in European eyes, that an enquirer is apt to think that the ethnographical record of most of the northern half of Africa is so blurred with contradictions, and so confused by inaccuracy, as to be undecipherable.