The details of this treason are lost to us; it is one of the darkest passages of Athenian history. From scattered and solitary references we can learn, however, that for a time it threatened the democracy with ruin. [195]

The victory of the Spartans at Tanagra gave strength to the Spartan party in Athens; it also inspired with fear many of the people; it was evidently desirable rather to effect a peace with Sparta than to hazard a war. Who so likely to effect that peace as the banished Cimon? Now was the time to press for his recall. Either at this period, or shortly afterward, Ephialtes, his most vehement enemy, was barbarously murdered—according to Aristotle, a victim to the hatred of the nobles.

XIII. Pericles had always conducted his opposition to Cimon with great dexterity and art; and indeed the aristocratic leaders of contending parties are rarely so hostile to each other as their subordinate followers suppose. In the present strife for the recall of his rival, amid all the intrigues and conspiracies, the open violence and the secret machination, which threatened not only the duration of the government, but the very existence of the republic, Pericles met the danger by proposing himself the repeal of Cimon's sentence.

Plutarch, with a childish sentimentality common to him when he means to be singularly effective, bursts into an exclamation upon the generosity of this step, and the candour and moderation of those times, when resentments could be so easily laid aside. But the profound and passionless mind of Pericles was above all the weakness of a melodramatic generosity. And it cannot be doubted that this measure was a compromise between the government and the more moderate and virtuous of the aristocratic party. Perhaps it was the most advantageous compromise Pericles was enabled to effect; for by concession with respect to individuals, we can often prevent concession as to things. The recall [196] of the great leader of the anti-popular faction may have been deemed equivalent to the surrender of many popular rights. And had we a deeper insight into the intrigues of that day and the details of the oligarchic conspiracy, I suspect we should find that, by recalling Cimon, Pericles saved the constitution. [197]

XIV. The first and most popular benefit anticipated from the recall of the son of Miltiades in a reconciliation between Sparta and Athens, was not immediately realized further than by an armistice of four months. [198]

About this time the long walls of the Piraeus were completed (B. C. 455), and shortly afterward Aegina yielded to the arms of the Athenians (B. C. 455), upon terms which subjected the citizens of that gallant and adventurous isle (whose achievements and commerce seem no less a miracle than the greatness of Athens when we survey the limits of their narrow and rocky domain) to the rival they had long so fearlessly, nor fruitlessly braved. The Aeginetans surrendered their shipping, demolished their walls, and consented to the payment of an annual tribute. And so was fulfilled the proverbial command of Pericles, that Aegina ought not to remain the eyesore of Athens.

XV. Aegina reduced, the Athenian fleet of fifty galleys, manned by four thousand men [199], under the command of Tolmides, circumnavigated the Peloponnesus—the armistice of four months had expired—and, landing in Laconia, Tolmides burnt Gythium, a dock of the Lacedaemonians; took Chalcis, a town belonging to Corinth, and, debarking at Sicyon, engaged and defeated the Sicyonians. Thence proceeding to Cephallenia, he mastered the cities of that isle; and descending at Naupactus, on the Corinthian gulf, wrested it from the Ozolian Locrians.

In the same year with this expedition, and in the tenth year of the siege (B. C. 455), Ithome surrendered to Lacedaemon. The long and gallant resistance of that town, the precipitous site of which nature herself had fortified, is one of the most memorable and glorious events in the Grecian history; and we cannot but regret that the imperfect morality of those days, which saw glory in the valour of freemen, rebellion only in that of slaves, should have left us but frigid and scanty accounts of so obstinate a siege. To posterity neither the cause nor the achievements of Marathon or Plataea, seem the one more holy, the other more heroic, than this long defiance of Messenians and helots against the prowess of Sparta and the aid of her allies. The reader will rejoice to learn that it was on no dishonourable terms that the city at last surrendered. Life and free permission to depart was granted to the besieged, and recorded by a pillar erected on the banks of the Alpheus [200]. But such of the helots as had been taken in battle or in the neighbouring territory were again reduced to slavery—the ringleaders so apprehended alone executed. [201]

The gallant defenders of Ithome having conditioned to quit for ever the Peloponnesus, Tolmides invested them with the possession of his new conquest of Naupactus. There, under a democratic government, protected by the power of Athens, they regained their ancient freedom, and preserved their hereditary name of Messenians—long distinguished from their neighbours by their peculiar dialect.

XVI. While thus, near at home, the Athenians had extended their conquests and cemented their power, the adventurers they had despatched to the Nile were maintaining their strange settlement with more obstinacy than success. At first, the Athenians and their ally, the Libyan Inarus, had indeed, as we have seen, obtained no inconsiderable advantage.