関連キーワード
1. Sumerians
2. Ancient Mesopotamia
3. Civilization
4. Legacy
5. History
6. Archaeology
7. Ancient writing systems
8. Cuneiform script
9. Literature
10. Religion
11. Mythology
12. Art and architecture
13. City-states
14. Social structure
15. Economic system
16. Trade and commerce
17. Technology
18. Irrigation systems
19. Legal system
20. Kingship
21. Mathematics
22. Astronomy and astrology
23. Medicine
24. Education
25. Gender roles
26. Warfare
27. Cultural exchange
28. Influence on later civilizations
29. Decipherment of ancient texts
30. Epics and legends