or two cities, and around them, stretching up the mountain-slopes, an agricultural hinterland: such were the "city-states" of Eubœa, and Locris, and Ætolia, and Phocis, and Bœotia, and Achæa, and Argolis, and Elis, and Arcadia, and Messenia, and Laconia—with its Sparta, and Attica—with its Athens.
Look at the map a last time, and observe the position of Athens: it is the farthest east of the larger cities of Greece. It was favorably placed to be the door through which the Greeks passed out to the busy cities of Asia Minor, and through which those elder cities sent their luxuries and their culture to adolescent Greece. It had an admirable port, Piræus, where countless vessels might find a haven from the rough waters of the sea. And it had a great maritime fleet.
In 490–470 B.C. Sparta and Athens, forgetting their jealousies and joining their forces, fought off the effort of the Persians under Darius and Xerxes to turn Greece into a colony of an Asiatic empire. In this struggle of youthful Europe against the senile East, Sparta provided the army and Athens the navy. The war over, Sparta demobilized her troops, and suffered the economic disturbances natural to that process; while Athens turned her navy into a merchant fleet, and became one of the greatest trading cities of the ancient world. Sparta relapsed into agricultural seclusion and stagnation, while Athens became a busy mart and port, the meeting place of many races of men and of diverse cults and customs, whose contact and rivalry begot comparison, analysis and thought.
Traditions and dogmas rub one another down to a minimum in such centers of varied intercourse; where there are a thousand faiths we are apt to become sceptical of them all. Probably the traders were the first sceptics; they had seen too much to believe too much; and the general disposition of merchants to classify all men as either fools or knaves inclined them to question every creed. Gradually, too, they were developing science; mathematics grew with the increasing complexity of exchange, astronomy with the increasing audacity of navigation.
