Islam was first brought to Morocco in 680 by an Arab invasion under the Uqba ibn Nafi, who was a general serving under the Umayyads of Damascus. In 788, The Zaydi ShiaIdrisids ruled large parts of Morocco. Their contemporaries included the heretical Barghawata state and the Khariji state of Sijilmasa. After several Berbers formed more powerful Islamic dynasties that reigned over the country. Among them were the Almoravids (1040–1147), who was the first to unite Morocco, as well as significant regions in West Africa, Spain and Algeria. The Almoravids were responsible for making the Malikii school of Islamic jurisprudence the most prominent in Morocco. It was later under Almohad rule (1121-1269) that smaller Muslim sects were persecuted and orthodox Sunni Islam became prevalent across the country.