235. The courage of the Thebans seemed to the rest of the Greeks like madness, and it was believed that a very few weeks would see them crushed by the overwhelming power of Sparta. But Thebes now possessed the greatest general whom Greece ever produced. Knowing his own power, and the value of those new tactics which were destined to supersede the Spartan system, he revived the drooping confidence of his countrymen, reasoned down their evil omens or invented good ones, and by his own greatness of soul sustained the spirit of a whole nation.
B. C. 371.
236. Battle of Leuc´tra. Cleombrotus, the Spartan, was already in Phocis with a considerable army. He began with energy by seizing Creusis, on the Crissæan Gulf, with twelve Theban vessels which lay in the harbor, thus providing at once a base of supplies and a line of retreat. He then marched along the Gulf of Corinth into Bœotia, and encamped upon the plains of Leuctra. Three of the seven bœotarchs were so much alarmed as to propose retreating upon Thebes, and sending their wives and children for safety to Athens; but their plan was overruled. Epaminondas and Pelopidas were alert and cheerful. Though outnumbered by the Spartans, they so arranged their forces as to be always superior at the actual point of contact, instead of engaging all at once, which had been the uniform method in Grecian warfare. The Theban left was a dense column, fifty deep, led by the Sacred Band. This was hurled upon the Lacedæmonian right, which contained their choicest troops, led by Cleombrotus himself; while the Theban center and right, facing the Spartan allies, were kept out of action. The onset of the Thebans was irresistible. Never had more furious fighting been seen on any Grecian battle-field. The Spartans maintained their ancient virtue; but Cleombrotus was mortally wounded, his whole division were driven to their camp, and the victory of the Thebans was complete. The allies of the Spartans, many of whom were present more through fear than choice, scarcely regretted the result of the battle.
At Sparta the fatal news was not permitted to interrupt the festival then in progress. All signs of mourning were forbidden, except on the part of those whose relatives had survived the defeat. The disaster was, nevertheless, the greatest that had ever befallen Sparta. Her influence was destroyed, even over the Peloponnesian cities. Her dependencies north of the Corinthian Gulf were divided between the Thebans and Jason, tyrant of Pheræ, in Thessaly, a man of singular talent and unbounded ambition, who aimed at the sovereignty of all Greece. The Thebans had courted his alliance, but they began to be alarmed by the extent of his projects, and all Greece was relieved when he was assassinated in 370. The Spartan sovereignty, which had lasted thirty-four years since the battle of Ægos-Potami, now gave way to the Theban Supremacy (B. C. 371-362).
237. The Mantineans seized the occasion to revenge their former wrongs, and besought the aid of Epaminondas. He entered Arcadia with an army near the end of the year 370, and was joined by Argives and Eleans, who increased his number to 70,000 men. By the entreaties of his allies, he marched into Laconia, and advanced upon Sparta itself. During all the centuries that the fame of Spartan valor had held Greece and Asia in awe, the Spartan women had never seen an enemy in arms, and the unwalled city was now filled with terror. But the energy of old King Agesilaus was equal to its defense. He repulsed the cavalry of Epaminondas, who retired down the valley of the Eurotas, burning and plundering as he went, and then returned to Arcadia.
238. The main objects of his expedition were yet to be fulfilled. A union of Arcadian towns had already been formed, which Epaminondas wished to organize and strengthen. Lest jealousy should be excited by the choice of any existing place as capital of the league, a new city, called Megalop´olis, was built, and peopled by colonists from forty towns. Here a congress of deputies, called the “Ten Thousand,” was to be regularly convened; and a standing army of deputies from the various cities was also raised.
239. A still more cherished plan was the restoration of the Messenians. For three hundred years this noble race had been fugitive and exiled, while its lands were in the possession of the Lacedæmonians. The exiles were now recalled, by the letters of Epaminondas, from the shores of Italy, Sicily, Africa, and Asia, and eagerly sprang to arms for the recovery of their ancient seats. The citadel of Ithome was fortified anew, and the town of Messe´ne, which arose upon the western slope of the mountain, was protected by strong walls. The Messenian territories extended southward to the gulf which bore their name, and northward to Elis and Arcadia.
B. C. 369.
240. Common jealousy of Thebes now led to a closer alliance between Athens and Sparta. Their forces were united in guarding the mountain-passes of the isthmus, in order to prevent another invasion of the Peloponnesus. Epaminondas, however, broke their line by defeating a Spartan division, and Sicyon deserted the Spartan for the Theban alliance. The Thebans were, in their turn, defeated in an attack upon Corinth, and their enemies were strengthened by a squadron which arrived at Lechæum, from Dionysius of Syracuse, bearing two thousand auxiliaries from Gaul and Spain.
B. C. 368.