Across
- 4. Muslim holy book
- 5. beautiful hand writing
- 7. wrote texts about the history of medicine
- 10. Muslims used these winds to help them trade
- 11. wrote the Canon of medicine
- 12. Indian number system
- 14. Muslim, Jewish, and Christian traders traded here
- 18. helped establish principles of history and economics
- 19. Contributed to the development of Algebra
- 20. Famous for writing the Shah Namah
Down
- 1. Language of the golden age
- 2. Crossed the Sahara into west Africa to trade
- 3. center of knowledge
- 6. massive irrigation projects drained swamp land
- 8. to move in social class
- 9. Known as Averroes
- 13. The English word check comes from this word
- 15. Introduced the term Algebra
- 16. study of vision and light
- 17. Encouraging the freeing of enslaved people