the mountains
Mountains, rivers, dense forest and vast stretches of uninhabited land separated the different regions within Greece.
There are 9 mainland regions in greece
Mainland greece, its really, just mainland Greece which has Athens within it... then you has the Peloponnese where Sparta and Olympia are and Crete, and the islands and just other regions such as Thrace, etc.
Cephalonia is an island located in western Greece. Greece is divided into 13 different regions, four of which are island groups. Cephalonia is contained within the Ionian Islands region of Greece.
In ancient Greece, regions were organized into city-states.
Rome
Most of the citys/states were seperated by rivers.
Rome
24
rivers
Province
Greece is located in the region of southeastern Europe.