Author : By Ulrich Braukämper
Year : 2003
“As far as it can hitherto be stated the Harla were the oldest identifiable population in the Harar Plateau. Between the 14th and 16th centuries they possessed the highly developed peasant civilization with urban center and stone architecture. When Abadir (Umar, Al, Rida), the legendary ancestor of Harari, reached Harar in the early 13th century, he was acknowledged by the Harla, the Gaturi and the Argobba……..”