Greece did not allow for unification of the land because of mounts and seas so communication was difficult and so they created city-states. The rugged mountains and numerous bays divided the Greece into small isolated region.
Explanation:
Greece has almost 1400 islands and its rugged and mountainous terrain did not allow the land to be flat which made it isolated and hence city states got formed. general terrain is mountainous. Greece is located in the southeast of Europe and along the shores of Mediterranean sea. the mountains, sea and islets caused to be the natural barrier between Greek city states. The largest mountain inn Greece is Mount Olympus.
Greeks called their land 'Hellas' and Greece is the word which comes from the Roman word 'Graecia'. Under the rule of Alexander the great, the Greek empire expanded. Pindus mountain range is referred to be the spine of Greece.