Across
- 6. - Tigris and Euphrates culture.
- 7. - Achaemenid Empire.
- 8. - Tenochtitlan and temples.
- 9. - Andean civilization.
- 11. - Pyramids and pharaohs.
- 12. - Ancient Indian civilization.
- 14. - Philosophy and city-states.
- 15. - Code of Hammurabi.
Down
- 1. - Anatolian civilization.
- 2. - Central American cultures.
- 3. - Empire and gladiators.
- 4. - Elaborate calendar system.
- 5. - Ancient Indian city.
- 10. - Great Wall and dynasties.
- 13. - Cuneiform writing system.