Across
- 2. a system in which advancement
- 6. political leader
- 7. related to an emperor
- 9. Chinese philosopher
- 11. fifth khagan
- 13. muslim berber
- 16. series of rulers from one family
- 17. tenth mansa
- 19. a test
- 20. year time the earth travels once a year
Down
- 1. complex system
- 3. a type of surgery
- 4. a ruling class
- 5. trade between north and south
- 8. the founder
- 10. rercording device
- 12. a symbol
- 14. military leader
- 15. an empire
- 18. explorer