36

12345678910111213141516171819202122232425
Across
  1. 3. Light source
  2. 4. Preservation method
  3. 9. Early engineering
  4. 11. Preservation process
  5. 15. Monumental pillars
  6. 16. Egyptian writing
  7. 17. Proto-chemistry
  8. 18. Carving material
  9. 22. Sailing ships
  10. 23. Water storage
  11. 24. Fabric colors
  12. 25. Leather making
Down
  1. 1. Roman waterway
  2. 2. Early farming
  3. 5. Wall painting
  4. 6. Fabric stitching
  5. 7. Map making
  6. 8. Tomb structures
  7. 10. Woodworking craft
  8. 12. Joint technique
  9. 13. Ceramic ovens
  10. 14. Hair tools
  11. 19. Early science
  12. 20. Coin production
  13. 21. Early artillery