Across
- 3. complex culture and religion
- 5. skilled worker
- 6. Massive stepped tower
- 8. the study of past societies
- 10. hypotheses
- 13. 2 rivers join
- 16. upright man
- 18. believe in many gods
- 19. important powerful person
Down
- 1. old stone age
- 2. hunter-gatherer
- 4. first human species
- 7. government established
- 9. human-like creature
- 11. the study of human life
- 12. a way of life
- 14. Wedge-shaped writing
- 15. change in government
- 17. age- lots of ice