Various variables added to the steady impoverishment and decrease of the Assume realm. The Arab venture into Northern Africa remove the realm's admittance to the Red-Sea stream (and to the business sectors which could be reached through it and on which a huge piece of the realm's thriving had been based). There is likewise proof to propose that a portion of the realm's regular assets, for example, gold and ivory, had been drained. Almost now is thought about this period of Ethiopian history and researchers even differ on the dates of its start and end.
The political focus of Ethiopia appears to have steadily moved toward the southern and eastern pieces of the Ti dark area