During the third year of the war the plague had entered the city. More than half of the people and Pericles, the great leader, had been killed. The plague was followed by a period of bad and untrustworthy leadership. A brilliant young fellow by the name of Alcibiades had gained the favor of the popular assembly. He suggested a raid upon the Spartan colony of Syracuse in Sicily. An expedition was equipped and everything was ready. But Alcibiades got mixed up in a street brawl and was forced to flee. The general who succeeded him was a bungler. First he lost his ships and then he lost his army, and the few surviving Athenians were thrown into the stone-quarries of Syracuse, where they died from hunger and thirst. The expedition had killed all the young men of Athens. The city was doomed. After a long siege the town surrendered in April of the year 404. The high walls were demolished. The navy was taken away by the Spartans. Athens ceased to exist as the center of the great colonial empire which it had conqueredduring the days of its prosperity. But that wonderful desire to learn and to know and to investigate which had distinguished her free citizens during the days of greatness and prosperity did not perish with the walls and the ships. It continued to live. It became even more brilliant.

Athens no longer shaped the destinies of the land of Greece. But now, as the home of the first great university the city began to influence the minds of intelligent people far beyond the narrow frontiers of Hellas.