The seas and islands provided great ports and henceforth outside contact.The Dardenelles
The Mediterranean.
The Silk Road
They were both stories about gods and Greece
The city with the largest Greek population outside of Greece is Melbourne, Australia.
There was no Olympic Games outside of Greece before the first one was recorded.
greek language and culture
You just answered your own question. Most Greeks did not go to other countries. In fact most of them were scared of the outside world. Most stayed in their home island of Greece.
there life's written on the outside
During ancient times, Athenians thought of non-Hellenes, i.e.) people outside of Greece, as barbarians.
Peloponnese peninsula
greek language and culture