Even before the recent hostilities at Corcyra and Potidæa, it had been evident to reflecting Greeks that prolonged observance of the Thirty Years’ Truce was becoming uncertain, and that the mingled hatred, fear, and admiration which Athens inspired throughout Greece would prompt Sparta and the Spartan confederacy to seize any favourable opening for breaking down the Athenian power. That such was the disposition of Sparta was well understood among the Athenian allies, however considerations of prudence and general slowness in resolving might postpone the moment of carrying it into effect. Accordingly not only the Samians when they revolted had applied to the Spartan confederacy for aid, which they appear to have been prevented from obtaining chiefly by the pacific interests then animating the Corinthians—but also the Lesbians had endeavoured to open negotiations with Sparta for a similar purpose, though the authorities to whom alone the proposition could have been communicated, since it long remained secret and was never executed—had given them no encouragement.
The affairs of Athens had been administered, under the ascendency of Pericles, without any view to extension of empire or encroachment upon others, though with constant reference to the probabilities of war, and with anxiety to keep the city in a condition to meet it. But even the splendid internal ornaments, which Athens at that time acquired, were probably not without their effect in provoking jealousy on the part of other Greeks as to her ultimate views. The only known incident, wherein Athens had been brought into collision with a member of the Spartan confederacy prior to the Corcyræan dispute, was her decree passed in regard to Megara, prohibiting the Megarians, on pain of death, from all trade or intercourse as well with Athens as with all ports within the Athenian empire. This prohibition was grounded on the alleged fact, that the Megarians had harboured runaway slaves from Athens, and had appropriated and cultivated portions of land upon her border; partly land, the property of the goddesses of Eleusis; partly a strip of territory disputed between the two states, and therefore left by mutual understanding in common pasture without any permanent enclosure. In reference to this latter point, the Athenian herald Anthemocritus had been sent to Megara to remonstrate, but had been so rudely dealt with, that his death shortly afterwards was imputed to the Megarians. We may reasonably suppose that ever since the revolt of Megara fourteen years before—which caused to Athens an irreparable mischief—the feeling prevalent between the two cities had been one of bitter enmity, manifesting itself in many ways, but so much exasperated by recent events as to provoke Athens to a signal revenge. Exclusion from Athens and all the ports in her empire, comprising nearly every island and seaport in the Ægean, was so ruinous to the Megarians, that they loudly complained of it at Sparta, representing it as an infraction of the Thirty Years’ Truce; though it was undoubtedly within the legitimate right of Athens to enforce, and was even less harsh than the systematic expulsion of foreigners by Sparta, with which Pericles compared it.
Attendant of a Greek Warrior
(From a vase)
[432 B.C.]
These complaints found increased attention after the war of Corcyra and the blockade of Potidæa by the Athenians. The sentiments of the Corinthians towards Athens had now become angry and warlike in the highest degree. It was not simply resentment for the past which animated them, but also the anxiety farther to bring upon Athens so strong a hostile pressure as should preserve Potidæa and its garrison from capture. Accordingly they lost no time in endeavouring to rouse the feelings of the Spartans against Athens, and in inducing them to invite to Sparta all such of the confederates as had any grievances against that city. Not merely the Megarians, but several other confederates, came thither as accusers; while the Æginetans, though their insular position made it perilous for them to appear, made themselves vehemently heard through the mouths of others, complaining that Athens withheld from them the autonomy to which they were entitled under the truce.