Across
- 3. Light source
- 4. Preservation method
- 9. Early engineering
- 11. Preservation process
- 15. Monumental pillars
- 16. Egyptian writing
- 17. Proto-chemistry
- 18. Carving material
- 22. Sailing ships
- 23. Water storage
- 24. Fabric colors
- 25. Leather making
Down
- 1. Roman waterway
- 2. Early farming
- 5. Wall painting
- 6. Fabric stitching
- 7. Map making
- 8. Tomb structures
- 10. Woodworking craft
- 12. Joint technique
- 13. Ceramic ovens
- 14. Hair tools
- 19. Early science
- 20. Coin production
- 21. Early artillery