Greek city-states shared all of the following cultural characteristics except pledging loyalty to other city-states.
Cultural characteristics of the ancient Greek
Ancient Greek city-states, despite sharing cultural traits like language and religious practices, operated independently. Pledging loyalty to other city-states was uncommon. They maintained distinct governments and foreign policies, fostering alliances and conflicts rather than universal allegiance.
Considering history, Greek city-states did not share the characteristic of pledging loyalty to other city-states. While they shared cultural aspects, city-states in ancient Greece often operated independently and could have rivalries or conflicts.