In the central part of Barbary the flight of the Berbers seems to have been connected with that numerous immigration of Arab families into North Africa which took place in the first half of the eleventh century, in the time and at the instigation of Ahmed ben ʿAli el Jerjeráni, who died in A.H. 436, or 1044-5 of our era. The fugitives pushed forward in several great divisions, which it is not essential here to enumerate, as, with a few exceptions, they have become extinct. It seems only necessary to advert here to the fact that of all the reports handed down to us by the ancient Arab historians and geographers respecting the different Berber nations existing in the desert, the name of Tarki, or Tuarek, by which they are at present generally designated, occurs only in Ebn Khaldún, under the form Tarká or Táriká; and after him Leo Africanus is the first who, in mentioning the five great tribes, names one of them Terga. This name, which has been given to the Berber inhabitants of the desert, and which Hodgson erroneously supposed to mean “tribe,” is quite foreign to them. The truly indigenous name by which these people call themselves is the same by which they were already known to the Greeks and Romans, and which was given to their ancestors by Ebn Khaldún and other Arabic writers, viz. Amázigh, Mázigh, Mazix, Masix, Mazys, Mazax, and even Maxitanus in the singular form. The general form now used in these regions is Amóshagh in the singular, Imóshagh in the plural, and Temáshight in the neutral form. This is the native name by which the so-called Tawárek designate their whole nation, which is divided into several great families. And if the reader inquires who gave them the other name, I answer, with full confidence, the Arabs; and the reason why they called them so was probably from their having left or abandoned their religion, from the verb “tereku dínihum;” for, from evidence which I have collected elsewhere, it seems clear that a great part of the Berbers of the desert were once Christians (they are still called by some Arabs “the Christians of the desert”), and that they afterwards changed their religion and adopted Islam; notwithstanding which they still call God “Mesí,” and an angel “anyelús,” and have preserved many curious customs which bear testimony to their ancient creed.