Across
- 1. Maritime construction
- 3. Trade route
- 4. Early chemistry
- 6. Currency creation
- 8. Hygiene product
- 10. Ceramic creation
- 11. Early printing
- 13. Writing tool
- 15. Horse gear
- 17. Ancient beverage
- 19. Ancient computer
- 20. Explosive invention
- 22. Water clock
- 23. Siege engine
- 24. Harvest tool
- 25. Crossing structures
Down
- 2. Writing material
- 5. Ancient healing
- 7. Star observer
- 9. Adornment craft
- 12. Trade goods
- 14. Fragrant burner
- 16. Light source
- 18. Writing medium
- 21. Ancient cooling