عبد الله بن ياسين
Seven years after the death of Muhammad (in 639 AD), the Arabs advanced toward Africa and within two generations, Islam had expanded across North Africa and all of the Central Maghreb. In the following centuries, the consolidation of Muslim trading networks, connected by lineage, trade, and Sufi brotherhoods, had reached a crescendo in West Africa, enabling Muslims to wield tremendous political influence and power. During the reign of Umar II, the then Governor of Africa, Ismail ibn Abdullah, was said to have won the Berbers to Islam by his just administration. Other early notable include Abdallah ibn Yasin, who started a movement which caused thousands of Berbers to accept Islam.