Wollo was a historical province of northern Ethiopia. During the Middle Ages this province name was Bete Amhara and it was the centre of the Solomonic emperors. Bete Amhara had an illustrious place in Ethiopian political and cultural history. It was the center of the Solomonic Dynasty established by Emperor Yekuno Amlak around Lake Hayq in 1270. Bete Amhara was bounded on the west by the Abbay, on the south by the river Wanchet, on the north by the Bashilo River and on the east by the Escarpment that separate it from the Afar Desert.