The introduction of Islam acquainted West Africans with a rich and complex culture. By the late eleventh century, Muslims were directing the leader of Ghana in the task of his regulatory apparatus. The ruler of Ghana received the Muslim Diwan, the organization for keeping monetary records. Since effective government relies upon the safeguarding of records, the entry of Islam in West Africa denoted the appearance of composed reports there. Bedouin Muslims likewise showed the leaders of Ghana how to fabricate blocks, and illustrious royal residences and mosques started to be worked of block. African rulers compared with Arab and North African Muslim planners, scholars, and different intelligent people, who exhorted them on statecraft and religion. Islam quickened the advancement of the West African realms of the ninth through fifteenth centuries.
