During the days thus employed the Boeotians were mustering at Tanagra, and by the time that they had come in from all the towns, found the Athenians already on their way home. The rest of the eleven Boeotarchs were against giving battle, as the enemy was no longer in Boeotia, the Athenians being just over the Oropian border, when they halted; but Pagondas, son of Aeolidas, one of the Boeotarchs of Thebes (Arianthides, son of Lysimachidas, being the other), and then commander-in-chief, thought it best to hazard a battle. He accordingly called the men to him, company after company, to prevent their all leaving their arms at once, and urged them to attack the Athenians, and stand the issue of a battle, speaking as follows:
“Boeotians, the idea that we ought not to give battle to the Athenians, unless we came up with them in Boeotia, is one which should never have entered into the head of any of us, your generals. It was to annoy Boeotia that they crossed the frontier and built a fort in our country; and they are therefore, I imagine, our enemies wherever we may come up with them, and from wheresoever they may have come to act as enemies do. And if any one has taken up with the idea in question for reasons of safety, it is high time for him to change his mind. The party attacked, whose own country is in danger, can scarcely discuss what is prudent with the calmness of men who are in full enjoyment of what they have got, and are thinking of attacking a neighbour in order to get more. It is your national habit, in your country or out of it, to oppose the same resistance to a foreign invader; and when that invader is Athenian, and lives upon your frontier besides, it is doubly imperative to do so. As between neighbours generally, freedom means simply a determination to hold one’s own; and with neighbours like these, who are trying to enslave near and far alike, there is nothing for it but to fight it out to the last. Look at the condition of the Euboeans and of most of the rest of Hellas, and be convinced that others have to fight with their neighbours for this frontier or that, but that for us conquest means one frontier for the whole country, about which no dispute can be made, for they will simply come and take by force what we have. So much more have we to fear from this neighbour than from another. Besides, people who, like the Athenians in the present instance, are tempted by pride of strength to attack their neighbours, usually march most confidently against those who keep still, and only defend themselves in their own country, but think twice before they grapple with those who meet them outside their frontier and strike the first blow if opportunity offers. The Athenians have shown us this themselves; the defeat which we inflicted upon them at Coronea, at the time when our quarrels had allowed them to occupy the country, has given great security to Boeotia until the present day. Remembering this, the old must equal their ancient exploits, and the young, the sons of the heroes of that time, must endeavour not to disgrace their native valour; and trusting in the help of the god whose temple has been sacrilegiously fortified, and in the victims which in our sacrifices have proved propitious, we must march against the enemy, and teach him that he must go and get what he wants by attacking someone who will not resist him, but that men whose glory it is to be always ready to give battle for the liberty of their own country, and never unjustly to enslave that of others, will not let him go without a struggle.”
By these arguments Pagondas persuaded the Boeotians to attack the Athenians, and quickly breaking up his camp led his army forward, it being now late in the day. On nearing the enemy, he halted in a position where a hill intervening prevented the two armies from seeing each other, and then formed and prepared for action. Meanwhile Hippocrates at Delium, informed of the approach of the Boeotians, sent orders to his troops to throw themselves into line, and himself joined them not long afterwards, leaving about three hundred horse behind him at Delium, at once to guard the place in case of attack, and to watch their opportunity and fall upon the Boeotians during the battle. The Boeotians placed a detachment to deal with these, and when everything was arranged to their satisfaction appeared over the hill, and halted in the order which they had determined on, to the number of seven thousand heavy infantry, more than ten thousand light troops, one thousand horse, and five hundred targeteers. On their right were the Thebans and those of their province, in the centre the Haliartians, Coronaeans, Copaeans, and the other people around the lake, and on the left the Thespians, Tanagraeans, and Orchomenians, the cavalry and the light troops being at the extremity of each wing. The Thebans formed twenty-five shields deep, the rest as they pleased. Such was the strength and disposition of the Boeotian army.
On the side of the Athenians, the heavy infantry throughout the whole army formed eight deep, being in numbers equal to the enemy, with the cavalry upon the two wings. Light troops regularly armed there were none in the army, nor had there ever been any at Athens. Those who had joined in the invasion, though many times more numerous than those of the enemy, had mostly followed unarmed, as part of the levy in mass of the citizens and foreigners at Athens, and having started first on their way home were not present in any number. The armies being now in line and upon the point of engaging, Hippocrates, the general, passed along the Athenian ranks, and encouraged them as follows:
“Athenians, I shall only say a few words to you, but brave men require no more, and they are addressed more to your understanding than to your courage. None of you must fancy that we are going out of our way to run this risk in the country of another. Fought in their territory the battle will be for ours: if we conquer, the Peloponnesians will never invade your country without the Boeotian horse, and in one battle you will win Boeotia and in a manner free Attica. Advance to meet them then like citizens of a country in which you all glory as the first in Hellas, and like sons of the fathers who beat them at Oenophyta with Myronides and thus gained possession of Boeotia.”
Hippocrates had got half through the army with his exhortation, when the Boeotians, after a few more hasty words from Pagondas, struck up the paean, and came against them from the hill; the Athenians advancing to meet them, and closing at a run. The extreme wing of neither army came into action, one like the other being stopped by the water-courses in the way; the rest engaged with the utmost obstinacy, shield against shield. The Boeotian left, as far as the centre, was worsted by the Athenians. The Thespians in that part of the field suffered most severely. The troops alongside them having given way, they were surrounded in a narrow space and cut down fighting hand to hand; some of the Athenians also fell into confusion in surrounding the enemy and mistook and so killed each other. In this part of the field the Boeotians were beaten, and retreated upon the troops still fighting; but the right, where the Thebans were, got the better of the Athenians and shoved them further and further back, though gradually at first. It so happened also that Pagondas, seeing the distress of his left, had sent two squadrons of horse, where they could not be seen, round the hill, and their sudden appearance struck a panic into the victorious wing of the Athenians, who thought that it was another army coming against them. At length in both parts of the field, disturbed by this panic, and with their line broken by the advancing Thebans, the whole Athenian army took to flight. Some made for Delium and the sea, some for Oropus, others for Mount Parnes, or wherever they had hopes of safety, pursued and cut down by the Boeotians, and in particular by the cavalry, composed partly of Boeotians and partly of Locrians, who had come up just as the rout began. Night however coming on to interrupt the pursuit, the mass of the fugitives escaped more easily than they would otherwise have done. The next day the troops at Oropus and Delium returned home by sea, after leaving a garrison in the latter place, which they continued to hold notwithstanding the defeat.
The Boeotians set up a trophy, took up their own dead, and stripped those of the enemy, and leaving a guard over them retired to Tanagra, there to take measures for attacking Delium. Meanwhile a herald came from the Athenians to ask for the dead, but was met and turned back by a Boeotian herald, who told him that he would effect nothing until the return of himself the Boeotian herald, and who then went on to the Athenians, and told them on the part of the Boeotians that they had done wrong in transgressing the law of the Hellenes. Of what use was the universal custom protecting the temples in an invaded country, if the Athenians were to fortify Delium and live there, acting exactly as if they were on unconsecrated ground, and drawing and using for their purposes the water which they, the Boeotians, never touched except for sacred uses? Accordingly for the god as well as for themselves, in the name of the deities concerned, and of Apollo, the Boeotians invited them first to evacuate the temple, if they wished to take up the dead that belonged to them.
After these words from the herald, the Athenians sent their own herald to the Boeotians to say that they had not done any wrong to the temple, and for the future would do it no more harm than they could help; not having occupied it originally in any such design, but to defend themselves from it against those who were really wronging them. The law of the Hellenes was that conquest of a country, whether more or less extensive, carried with it possession of the temples in that country, with the obligation to keep up the usual ceremonies, at least as far as possible. The Boeotians and most other people who had turned out the owners of a country, and put themselves in their places by force, now held as of right the temples which they originally entered as usurpers. If the Athenians could have conquered more of Boeotia this would have been the case with them: as things stood, the piece of it which they had got they should treat as their own, and not quit unless obliged. The water they had disturbed under the impulsion of a necessity which they had not wantonly incurred, having been forced to use it in defending themselves against the Boeotians who first invaded Attica. Besides, anything done under the pressure of war and danger might reasonably claim indulgence even in the eye of the god; or why, pray, were the altars the asylum for involuntary offences? Transgression also was a term applied to presumptuous offenders, not to the victims of adverse circumstances. In short, which were most impious—the Boeotians who wished to barter dead bodies for holy places, or the Athenians who refused to give up holy places to obtain what was theirs by right? The condition of evacuating Boeotia must therefore be withdrawn. They were no longer in Boeotia. They stood where they stood by the right of the sword. All that the Boeotians had to do was to tell them to take up their dead under a truce according to the national custom.
The Boeotians replied that if they were in Boeotia, they must evacuate that country before taking up their dead; if they were in their own territory, they could do as they pleased: for they knew that, although the Oropid where the bodies as it chanced were lying (the battle having been fought on the borders) was subject to Athens, yet the Athenians could not get them without their leave. Besides, why should they grant a truce for Athenian ground? And what could be fairer than to tell them to evacuate Boeotia if they wished to get what they asked? The Athenian herald accordingly returned with this answer, without having accomplished his object.
Meanwhile the Boeotians at once sent for darters and slingers from the Malian Gulf, and with two thousand Corinthian heavy infantry who had joined them after the battle, the Peloponnesian garrison which had evacuated Nisaea, and some Megarians with them, marched against Delium, and attacked the fort, and after divers efforts finally succeeded in taking it by an engine of the following description. They sawed in two and scooped out a great beam from end to end, and fitting it nicely together again like a pipe, hung by chains a cauldron at one extremity, with which communicated an iron tube projecting from the beam, which was itself in great part plated with iron. This they brought up from a distance upon carts to the part of the wall principally composed of vines and timber, and when it was near, inserted huge bellows into their end of the beam and blew with them. The blast passing closely confined into the cauldron, which was filled with lighted coals, sulphur and pitch, made a great blaze, and set fire to the wall, which soon became untenable for its defenders, who left it and fled; and in this way the fort was taken. Of the garrison some were killed and two hundred made prisoners; most of the rest got on board their ships and returned home.