It was the first measure of Thrasybulus and his companions, after concluding the treaty with Pausanias and thus re-entering the city, to exchange solemn oaths of amnesty for the past, with those against whom they had just been at war. Similar oaths of amnesty were also exchanged with those in Eleusis, as soon as that town came into their power. The only persons excepted from this amnesty were the Thirty, the Eleven who had presided over the execution of all their atrocities, and the Ten who had governed in Piræus. Even these persons were not peremptorily banished: opportunity was offered to them to come in and take their trial of accountability (universal at Athens in the case of every magistrate on quitting office); so that if acquitted, they would enjoy the benefit of the amnesty as well as all others. We know that Eratosthenes, one of the Thirty, afterwards returned to Athens; since there remains a powerful harangue of Lysias invoking justice against him as having brought to death Polemarchus (the brother of Lysias).
We learn moreover from the same speech, that such was the detestation of the Thirty among several of the states surrounding Attica, as to cause formal decrees for their expulsion or for prohibiting their coming. The sons, even of such among the Thirty as did not return, were allowed to remain at Athens, and enjoy their rights as citizens unmolested; a moderation rare in Grecian political warfare.
The first public vote of the Athenians, after the conclusion of peace with Sparta and the return of the exiles, was to restore the former democracy purely and simply, to choose by lot the nine archons and the senate of Five Hundred, and to elect the generals—all as before. It appears that this restoration of the preceding constitution was partially opposed by a citizen named Phormisius, who, having served with Thrasybulus in Piræus, now moved that the political franchise should for the future be restricted to the possessors of land in Attica. His proposition was understood to be supported by the Lacedæmonians, and was recommended as calculated to make Athens march in better harmony with them. It was presented as a compromise between oligarchy and democracy, excluding both the poorer freemen and those whose property lay either in movables or in land out of Attica; so that the aggregate number of the disfranchised would have been five thousand persons. Since Athens now had lost her fleet and maritime empire, and since the importance of Piræus was much curtailed not merely by these losses, but by demolition of its separate walls and of the Long Walls—Phormisius and others conceived the opportunity favourable for striking out the maritime and trading multitude from the roll of citizens. Many of these men must have been in easy and even opulent circumstances; but the bulk of them were poor; and Phormisius had of course at his command the usual arguments, by which it is attempted to prove that poor men have no business with political judgment or action. But the proposition was rejected; the orator Lysias being among its opponents, and composing a speech against it which was either spoken, or intended to be spoken, by some eminent citizen in the assembly.
Unfortunately we have only a fragment of the speech remaining, wherein the proposition is justly criticised as mischievous and unseasonable, depriving Athens of a large portion of her legitimate strength, patriotism, and harmony, and even of substantial men competent to serve as hoplites or horsemen—at a moment when she was barely rising from absolute prostration. Never certainly was the fallacy which connects political depravity or incapacity with a poor station, and political virtue or judgment with wealth, more conspicuously unmasked than in reference to the recent experience of Athens. The remark of Thrasybulus was most true—that a greater number of atrocities, both against person and against property, had been committed in a few months by the Thirty, and abetted by the class of horsemen, all rich men, than the poor majority of the demos had sanctioned during two generations of democracy. Moreover we know, on the authority of a witness unfriendly to the democracy, that the poor Athenian citizens, who served on shipboard and elsewhere, were exact in obedience to their commanders; while the richer citizens who served as hoplites and horsemen and who laid claim to higher individual estimation, were far less orderly in the public service.