Whilst Epaminondas marched against the enemy, the cavalry that covered his flank on the left, the best at that time in Greece, entirely composed of Thebans and Thessalians, had orders to attack the enemy's horse. The Theban general, whom nothing escaped, had artfully bestowed bowmen, slingers and dartmen, in the intervals of his horse, in order to begin the disorder of the enemy's cavalry, by a previous discharge of a shower of arrows, stones, and javelins, upon them. The other army had neglected to take the same precaution, and had made another fault, not less considerable, in giving as much depth to the squadrons as if they had been a phalanx. By this means their horse were incapable of supporting long the charge of the Thebans. After having made several ineffectual attacks with great loss, they were obliged to retire behind their infantry.
In the mean time, Epaminondas, with his body of foot, had charged the Lacedæmonian phalanx. The troops fought on both sides with incredible ardour; both the Thebans and Lacedæmonians being resolved to perish rather than yield the glory of arms to their rivals. They began by fighting with the spear; and those first arms being soon broken in the fury of the combat, they charged each other sword in hand. The resistance was equally obstinate, and the slaughter very great on both sides.
The furious slaughter on both sides having continued a great while without the victory's inclining to either, Epaminondas, to force it to declare for him, thought it his duty to make an extraordinary effort in person, without regard to the danger of his own life. He formed, therefore, a troop of the bravest and most determined about him, and putting himself at the head of them, he made a vigorous charge upon the enemy, where the battle was most warm, and wounded the general of the Lacedæmonians with the first javelin he threw. His troop, by his example, having wounded or killed all that stood in their way, broke and penetrated the phalanx. The gross of the Theban troops, animated by their general's example and success, drove back the enemy upon his right and left, and made a great slaughter of them. But some troops of the Spartans, perceiving that Epaminondas abandoned himself too much to his ardour, suddenly rallied, and returning to the fight, charged him with a shower of javelins. Whilst he kept off part of those darts, shunned some of them, fenced off others, and was fighting with the most heroic valour, to assure the victory to his army, a Spartan, named Callicrates, gave him a mortal wound with a javelin in the breast across his cuirass. The wood of the javelin being broken off, and the iron head continuing in the wound, the torment was insupportable, and he fell immediately. The battle began around him with new fury; the one side using their utmost endeavours to take him alive, and the other to save him. The Thebans gained their point at last, and carried him off, after having put the enemy to flight.
Epaminondas was carried into the camp. The surgeons, after having examined the wound, declared that he would expire as soon as the head of the dart was drawn out of it. Those words gave all that were present the utmost sorrow and affliction, who were inconsolable on seeing so great a man about to die, and to die without issue. For him, the only concern he expressed, was about his arms, and the success of the battle. When they showed him his shield, and assured him that the Thebans had gained the victory; turning towards his friends with a calm and serene air; "Do not regard," said he, "this day as the end of my life, but as the beginning of my happiness, and the completion of my glory. I leave Thebes triumphant, proud Sparta humbled, and Greece delivered from the yoke of servitude. For the rest, I do not reckon that I die without issue; Leuctra and Mantinea are two illustrious daughters, that will not fail to keep my name alive, and to transmit it to posterity." Having spoken to this effect, he drew the head of the javelin out of his wound, and expired.
Mantinea is also famous for another great battle, viz., that between Philopœmen and Machanidas, tyrant of Sparta[347]. The time for beginning the battle approaching and the enemy in view, Philopœmen, flying up and down the ranks of the infantry, encouraged his men in few but very strong expressions. Most of them were even not heard; but he was so dear to his soldiers, and they reposed such confidence in him, that they wanted no exhortations to fight with incredible ardour. In a kind of transport they animated their general, and pressed him to lead them on to battle.
Machanidas marched his infantry in a kind of column, as if he intended to begin the battle by charging the right wing; but when he was advanced to a proper distance, he on a sudden made his infantry wheel about, in order that it might extend to his right, and make a front equal to the left of the Achæans; and, to cover it, he caused all the chariots laden with catapults to advance forward. Philopœmen plainly saw that his intention was to break his infantry, by overwhelming it with darts and stones: however, he did not give him time for it. The first charge was very furious. The light-armed soldiers advancing a little after to sustain them, in a moment the foreign troops were universally engaged on both sides; and, as in this attack they fought man to man, the battle was a long time doubtful. At last the foreigners in the tyrant's army had the advantage; their numbers and dexterity, acquired by experience, giving them the superiority. The Illyrians and cuirassiers, who sustained the foreign soldiers in Philopœmen's army, could not withstand so furious a charge. They were entirely broken, and fled with the utmost precipitation towards Mantinea, about a mile from the field of battle.
Philopœmen seemed now lost to all hopes. "On this occasion," says Polybius, "appeared the truth of a maxim, which cannot reasonably be contested, That the events of war are generally successful or unfortunate, only in proportion to the skill or ignorance of the generals who command in them. Philopœmen, so far from desponding at the ill success of the first charge, or being in confusion, was solely intent upon taking advantage of the errors which the enemy might commit." Accordingly, they were guilty of a great one. Machanidas, after the left wing was routed, instead of improving that advantage, by charging in front that instant with his infantry the centre of that of the enemies, and taking it at the same time in flank with his victorious wing, and thereby terminating the whole affair, suffers himself, like a young man, to be hurried away by the fire and impetuosity of his soldiers, and pursues, without order or discipline, those who were flying.
Philopœmen, who had retired to his infantry in the centre, takes the first cohorts, commands them to wheel to the left, and at their head marches and seizes the post which Machanidas had abandoned. By this movement he divided the centre of the enemies' infantry from his right wing. He then commanded these cohorts to stay in the post they had just seized, till further orders; and at the same time directed a Megalapolitan to rally all the Illyrians, cuirassiers, and foreigners, who, without quitting their ranks, and flying as the rest had done, had drawn off, to avoid the fury of the conqueror; and with these forces to post himself on the flank of the infantry in his centre, to check the enemy in their return from the pursuit.
This Megalapolitan was named Polyinus; but not the historian, as many writers have imagined.
The Lacedæmonian infantry, elated with the first success of their wing, without waiting for the signal, advanced with their pikes lowered towards the Achæans, as far as the brink of the ditch. This was the decisive point of time for which Philopœmen had long waited, and thereupon he ordered the charge to be sounded. His troops levelling their pikes, fell with dreadful shouts on the Lacedemonians. These, who at their descending into the ditch, had broken their ranks, no sooner saw the enemy above them, but immediately fled.