| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | city-state | ancient Mediterranean civilizations | The concept of city-states was prevalent in ancient Mediterranean civilizations, defined as independent sovereign cities and their territories. | 1 |
| 2 | galley | ancient Mediterranean civilizations | The galley was historically used as a key warship in naval battles by ancient Mediterranean civilizations. | 1 |