Following the Islamic conquest in 639, Lower Egypt was ruled at first by governors acting in the name of the Rashidun Caliphs and then the Umayyad Caliphs in Damascus, but in 747 the Umayyads were overthrown. Throughout Islamic rule, Askar was named the capital and housed the ruling administration. The conquest led to two separate provinces all under one ruler: Upper and Lower Egypt. These two very distinct regions were governed by the military and followed the demands handed down by the governor of Egypt and imposed by the heads of their communities.