How the West Africans used it to maintain their empires.

The king of Ghana spread his power through trade. Gold, ivory, and slaves were bartered for salt from the Arabs. Horses, cloth, swords and books were bartered from North Africans and Europeans. Ghana achieved much of its wealth by trading with the Arabs.

the story goes that because of this belief, constantine was able to defeat his foes. constantine became an ardent1 christian. christianity and other religions were tolerated under constantine's rule. constantine also was responsible for the building of a great cathedral in rome.