While many parts of West African society remained the same, during the time period of 1000 CE and 1750 CE, Islam changed West Africa culturally, politically, and economically. Islam had a dar al-islam, a place in which they could practice their religion as the ruling sect. Islam conquerors added North Africa to it during the seventh and eighth centuries CE. By the end of this time, Muslim merchants had became engaged in trade and relations with West Africa, soon to become settled on West african life. Islam brought upon a new period of economic success to West Africa. They were able to expand their gold trade to surround Arab nations through mutual grounds that the adoption of Islam supplied them with. Initiated trade routes made a dramatic increase in the capacity of African trade possible.