sentences:  By the 12th century AD the Hausa were becoming one of Africa's major trading powers, competing with Kanem-Bornu and the Mali Empire.The primary exports were leather, gold, cloth, salt, kola nuts, slaves, animal hides, and henna.By the onset of the 14th century, Islam was fast becomjng widespread in Hausaland, as Wangara (Malinke, Jula and Soninke) and Fula scholars and traders from Mali as well as a Tuareg caravan traders, brought the religion with them, settled in the merchantile districts of Hausa cities, while Hausa traders began to settle in Zango (camel caravan) districts in cities throughout West Africa.