The answer would be the geography of the country. Its mountain terrain and bodies of water created a boundary to each city-state. Each city-state created their own society. For example, Sparta had created a military society while Athens is the center of many intelligent people. Each city-state also has their worshipped specific gods, Aside from Zeus, Poseidon, and Hades.
Interdependence best summarizes the feudal system.
A person who is killed in the midst of combat during a military battle.
Europe, India, and Africa
