Across
- 3. the division of society by class
- 6. a set of letters that can be combined to form words
- 7. human-made waterways
- 10. first set of 282 laws in human history
- 11. more than you need
- 12. worship of many gods
- 17. picture symbols]
- 19. ancient city on what is now Baghdad, Iraq
- 20. a large arc of fertile farmland
Down
- 1. people who led religious ceremonies
- 2. a pyramid-shaped temple
- 4. the science of building
- 5. wheeled horse-drawn cart used in battle
- 8. land with different territories under one single rule
- 9. a central city and countryside all around it
- 13. long poems that tell the stories of heroes
- 14. mixture of rich soil and tiny rocks
- 15. writers
- 16. a way of supplying water to an area of land
- 18. world's first system of writing