Across
- 2. buying and selling goods and services
- 4. a barren area of landscape with little rain
- 7. worlds oldest religion
- 9. Greek philosopher
- 10. a series of fortification systems located in China
- 11. the study of the fundamental nature of knowledge
- 12. piece of land that extends into a body of water
- 13. city state in ancient Greece
- 15. rule by a few powerful people
- 18. the practice of farming
Down
- 1. the movement from one place to another
- 3. study of space and celestial objects
- 5. Mesoamerica's first known civilization
- 6. founder of Islam
- 8. killed thousands of Native Americans
- 9. the heart of ancient Greece
- 14. the religion of the Muslims
- 16. preceded by the stone and bronze age
- 17. a widespread Asian religion founded in India
- 19. a particular system of faith and worship