After the death of Pericles the leadership of affairs at Athens fell into the hands of unprincipled demagogues, of whom Cleon was chief. The mob element got control of the popular assembly, so that hereafter we shall find many of its actions characterized neither by virtue nor wisdom.
DESPERATE AND CRUEL CHARACTER OF THE WAR.—On both sides the war was waged with the utmost vindictiveness and cruelty. As a rule, all the men captured by either side were killed.
In the year 428 B.C. the city of Mytilene, on the island of Lesbos, revolted from the Athenians. With the rebellion suppressed, the fate of the Mytileneans was in the hands of the Athenian assembly. Cleon proposed that all the men of the place, six thousand in number, should be slain, and the women and children sold as slaves. This infamous decree was passed, and a galley despatched bearing the sentence for execution to the Athenian general at Mytilene.
By the next morning, however, the Athenians had repented of their hasty and cruel resolution. A second meeting of the assembly was hurriedly called; the barbarous vote was repealed; and a swift trireme, bearing the reprieve, set out in anxious haste to overtake the former galley, which had twenty-four hours the start. The trireme reached the island just in time to prevent the execution of the barbarous edict.
The second resolution of the Athenians, though more discriminating than the first decree, was quite severe enough. Over one thousand of the nobles of Mytilene were killed, the city was destroyed, and the larger part of the lands of the island given to citizens of Athens.
Still more unrelenting and cruel were the Spartans. In the summer of the same year that the Athenians wreaked such vengeance upon the Mytileneans, the Spartans and their allies captured the city of Platæa, put to death all the men, sold the women as slaves, and turned the site of the city into pasture-land.
EVENTS LEADING UP TO THE PEACE OF NICIAS (421 B.C.).—Soon after the affair at Mytilene and the destruction of Platæa, an enterprising general of the Athenians, named Demosthenes, seized and fortified a point of land (Pylos) on the coast of Messenia. The Spartans made every effort to dislodge the enemy. In the course of the siege, four hundred Spartans under Brasidas, having landed upon a little island (Sphacteria), were so unfortunate as to be cut off from the mainland by the sudden arrival of an Athenian fleet. About three hundred of them were at last captured and taken as prisoners to Athens.
But affairs now took a different turn; the Athenians were worsted (at the battle of Delium, 424 B.C.), and then much indecisive fighting followed. At last negotiations for peace were opened, which, after many embassies to and fro, resulted in what is known as the Peace of Nicias, from the prominent Athenian general who is supposed to have had most to do in bringing it about. The treaty arranged for a truce of fifty years. Each party was to give up to the other all prisoners and captured places.
ALCIBIADES AND THE SICILIAN EXPEDITION (415-413 B.C.).—The Peace of Nicias was only a nominal one. Some of the allies of the two principal parties to the truce were dissatisfied with it, and consequently its terms were not carried out in good faith or temper on either side. So the war went on. For about seven years, however, Athens and Sparta refrained from invading each other's territory; but even during this period each was aiding its allies in making war upon the dependents or confederates of the other. Finally, hostilities flamed out in open and avowed war, and all Hellas was again lit up with the fires of the fratricidal strife.
[Illustration: ALCIBIADES]