Greek's geography aided it in that its mountainous and somewhat inhospitable terrain forced the Greek people to send out colonies to places throughout the Mediterranean from Italy to the Black Sea and from France to Spain. This array of colonies allowed a vast amount of trade with Greece making it quite wealthy and spread the advanced Greek culture to many societies throughout the Mediterranean.
The Greeks lived on a peninsula, so their navy was really strong and they were able to trade in distant lands by using the sea which was far easier to transport goods than on land.
