Across
- 4. - Precolumbian culture
- 5. - Classical culture
- 8. - Maritime civilization
- 12. - Nile civilization
- 13. - Mesopotamian region
- 14. - Ancient city-state
Down
- 1. - Andean empire
- 2. - Central American empire
- 3. - Eternal city
- 6. - Silk Road civilization
- 7. - Mesoamerican civilization
- 9. - Indus Valley city
- 10. - Valley civilization
- 11. - Ancient empire