In the fourth year of the reign of Archidamus, the son of Zeuxidamus, King of Sparta, there happened in the country of Lacedaemon the greatest earthquake that was known in the memory of man; the earth opened into chasms, and the mountain Taygetus was so shaken, that some of the rocky points of it fell down, and except five houses, all the town of Sparta was shattered to pieces. They say that a little before any motion was perceived, as the young men and the boys just grown up were exercising themselves together in the middle of the portico, a hare, of a sudden, started out just by them, which the young men, though all naked and daubed with oil, ran after for sport. No sooner were they gone from the place, than the gymnasium fell down upon the boys who had stayed behind, and killed them all. Their tomb is to this day called Sismatias. Archidamus, by the present danger made apprehensive of what might follow, and seeing the citizens intent upon removing the most valuable of their goods out of their houses, commanded an alarm to be sounded, as if an enemy were coming upon them, in order that they should collect about him in a body, with arms. It was this alone that saved Sparta at that time, for the Helots were got together from the country about, with design to surprise the Spartans, and overpower those whom the earthquake had spared. But finding them armed and well prepared, they retired into the towns and openly made war with them, gaining over a number of the Laconians of the country districts; while at the same time the Messenians, also, made an attack upon the Spartans, who therefore despatched Periclidas to Athens to solicit succours, of whom Aristophanes says in mockery that he came and-"In a red jacket, at the altars seated, With a white face, for men and arms entreated."This Ephialtes opposed, protesting that they ought not to raise up or assist a city that was a rival to Athens; but that being down, it were best to keep her so, and let the pride and arrogance of Sparta be trodden under. But Cimon, as Critias says, preferring the safety of Lacedaemon to the aggrandisement of his own country, so persuaded the people, that he soon marched out with a large army to their relief. Ion records, also, the most successful expression which he used to move the Athenians. "They ought not to suffer Greece to be lamed, nor their own city to be deprived of her yoke-fellow."In his return from aiding the Lacedaemonians, he passed with his army through the territory of Corinth; whereupon Lachartus reproached him for bringing his army into the country without first asking leave of the people. For he that knocks at another man's door ought not to enter the house till the master gives him leave. "But you Corinthians, O Lachartus," said Cimon, "did not knock at the gates of the Cleonaeans and Megarians, but broke them down, and entered by force, thinking that all places should be open to the stronger." And having thus rallied the Corinthian, he passed on with his army. Some time after this, the Lacedaemonians sent a second time to desire succours of the Athenians against the Messenians and Helots, who had seized upon Ithome. But when they came, fearing their boldness and gallantry, of all that came to their assistance, they sent them only back, alleging they were designing innovations. The Athenians returned home, enraged at this usage, and vented their anger upon all those who were favourers of the Lacedaemonians, and seizing some slight occasion, they banished Cimon for ten years, which is the time prescribed to those that are banished by the ostracism. In the meantime, the Lacedaemonians, on their return after freeing Delphi from the Phocians, encamped their army at Tanagra, whither the Athenians presently marched with design to fight them.
Cimon, also, came thither armed, and ranged himself among those of his own tribe which was the Oeneis, desirous of fighting with the rest against the Spartans; but the council of five hundred being informed of this, and frighted at it, his adversaries crying out he would disorder the army, and bring the Lacedaemonians to Athens, commanded the officers not to receive him. Wherefore Cimon left the army, conjuring Euthippus, the Anaphlystian, and the rest of his companions, who were most suspected as favouring the Lacedaemonians, to behave themselves bravely against their enemies, and by their actions make their innocence evident to their countrymen. These, being in all a hundred, took the arms of Cimon, and followed his advice; and ****** a body by themselves, fought so desperately with the enemy, that they were all cut off, leaving the Athenians deep regret for the loss of such brave men, and repentance for having so unjustly suspected them. Accordingly, they did not long retain their severity toward Cimon, partly upon remembrance of his former services, and partly, perhaps, induced by the juncture of the times. For being defeated at Tanagra in a great battle, and fearing the Peloponnesians would come upon them at the opening of the spring, they recalled Cimon by a decree, of which Pericles himself was author. So reasonable were men's resentments in those times, and so moderate their anger, that it always gave way to the public good. Even ambition, the least governable of all human passions, could then yield to the necessities of the state.