6. How might al-Bakri have been able to write so accurately about places he had never been? 7. How long after the decline of Ghana did the Songhai Empire come to an end?

8. How were the goods traded by Ghana and Mali alike and different?

9. What were two valuable products traded through Ghana?

10. Name the most important person in the founding of Mali.

11. How did trade affect the development of East African kingdoms?

12. Why did coastal traders have different goods to exchange than the inland traders?

13. Why did Axum become a prosperous trading center?

14. Explain how Indian Ocean trade affected Africa.