At this time there were two chief men in Athens, and each was trying to be leader. One was named Themistocles--pronounced The-mis-to-klees--and the other Aristides--pronounced Air-is-tie-dees. Notice how many Greek names seem to end in “es.” Themistocles urged the Athenians to get ready for what he knew was coming, the next war with Persia. Especially did he urge the Athenians to build a fleet of boats, for they had no boats and the Persians had a great many. Aristides, on the other hand, didn’t believe in Themistocles’ scheme to build boats. He thought it a foolish expense and talked against it. Aristides had always been so wise and fair that people called him Aristides the Just. Some of the people wanted to get rid of him, because they thought he was wrong and Themistocles was right. So they waited till the time came to vote to ostracize any one they wanted to get rid of. Do you remember who started this custom? Clisthenes--about 500 B.C. When the day for voting came, a man who could not write and did not know Aristides by sight happened to ask his help in voting. Aristides inquired what name he should write, and the man replied, “Aristides.” Aristides did not tell who he was, but merely said: “Why do you want to get rid of this man? Has he done anything wrong?” “Oh, no,” the voter replied. “He hasn’t done anything wrong”; but with a long sigh he said, “I’m so tired of hearing him always called ’The Just.’” Aristides must have been surprised by this unreasonable answer, but nevertheless he wrote his own name for the voter, and when the votes were counted there were so many that he was ostracized. Though it did not seem quite fair that Aristides should be ostracized, it was fortunate, as it turned out, that Themistocles had his way, and it was fortunate the Athenians went on preparing for war. They built a fleet of triremes. Then they got all the cities and towns in Greece to agree to join forces in case of war. Sparta, on account of its fame as a city of soldiers, was made the leader of all the others in case war should come. And then, just ten years after the battle of Marathon, in 480 B. C., the great Persian army was again ready to attack Greece. It had been, brought together from all parts of the vast Persian Empire and was far bigger than the former army with its 120,000 men, although that was a large army for those days. This time the army is supposed to have consisted of over two million soldiers--two million; just think of that! The question then was how to get so many soldiers over to Greece. Such a multitude could not be carried across to Greece in boats, for even the largest triremes only held a few hundred men, and it would have taken--well, can you tell how many boats, to carry over two million? Probably many more triremes than there were in the whole world at that time. So Xerxes decided to have his army march to Greece, the long way but the only way round. So they started.