Describe the african kingdoms of ghana, kush, mali, and aksum, and identify their contributions to the world. then, explain the factors that made east africa a center for trade. use specific examples from your research to support your statements. in 7-8 sentences? ?

Ghana and Mail are both very rich in gold and salt and controlled most of the taxation and trade. Kush is south of Egypt and became very powerful due to control of the some of the Nile and had very good trade relations with Askums, Egyptians and Himyarites. And the Aksum kingdom is in Eritrea.