πέμπτῳ δὲ ἔτει τῆς Ἀριστοδήμου βασιλείας μελλόντων ἐκ προρρήσεως συμβολὴν ποιήσεσθαι—τῷ τε γὰρ μήκει τοῦ πολέμου καὶ τοῖς δαπανήμασιν ἀπειρήκεσαν—οὕτω παρεγένοντο ἀμφοτέροις καὶ οἱ σύμμαχοι, Λακεδαιμονίοις μὲν Κορίνθιοι Πελοποννησίων μόνοι, τοῖς δὲ Μεσσηνίοις οἵ τε Ἀρκάδες πανστρατιᾷ καὶ Ἀργείων καὶ Σικυωνίων λογάδες. Λακεδαιμόνιοι μὲν οὖν Κορινθίοις καὶ τοῖς εἵλωσι καὶ ὅσοι περίοικοι συνεστρατεύοντο τὸ μέσον ἐπιτρέψαντες, ἐπὶ τοῖς κέρασιν αὐτοί τε καὶ οἱ βασιλεῖς ἐτάσσοντο βαθείᾳ τε ὡς οὔπω πρότερον καὶ πυκνῇ τῇ φάλαγγι.
τῷ δὲ Ἀριστοδήμῳ καὶ τοῖς περὶ αὐτὸν διετάχθη τὰ ἐς τὴν μάχην οὕτως. ὅσοι τῶν Ἀρκάδων ἢ τῶν Μεσσηνίων τὰ μὲν σώματα ἦσαν ἐρρωμένοι καὶ ἀγαθοὶ τὰς ψυχάς, ὅπλα δὲ οὐκ εἶχον ἰσχυρά, τούτοις τῶν ὅπλων τὰ χρησιμώτατα ἐπέλεξε, καὶ ὡς τὸ ἔργον ἤπειγεν, ὁμοῦ τοῖς Ἀργείοις καὶ Σικυωνίοις καὶ τούτους ἔτασσε· τὴν δὲ φάλαγγα ἐπὶ πλέον ἥπλωσεν, ὡς μὴ κυκλωθεῖεν ὑπὸ τῶν ἐναντίων. προείδετο δὲ καὶ ὅπως τεταγμένοις σφίσι τὸ ὄρος ἡ Ἰθώμη κατὰ νώτου γίνοιτο. καὶ τούτοις μὲν Κλέοννιν ἐπέταξεν ἡγεμόνα·
αὐτὸς δὲ καὶ ὁ Δᾶμις ὑπέμενον ἔχοντες τοὺς ψιλούς, σφενδονήτας μὲν ἢ τοξότας ὀλίγους, ὁ δὲ ὄχλος ὁ πολὺς τοῖς τε σώμασιν ἦσαν ἐς τὰς ἐπιδρομὰς καὶ ἀναχωρήσεις ἐπιτήδειοι καὶ τῇ ὁπλίσει κοῦφοι· θώρακα γὰρ ἢ ἀσπίδα εἶχεν οὐχ ἕκαστος, ὅσοι δὲ ἠπόρουν τούτων, περιεβέβληντο αἰγῶν νάκας καὶ προβάτων, οἱ δὲ καὶ θηρίων δέρματα καὶ μάλιστα οἱ ὀρεινοὶ τῶν Ἀρκάδων λύκων τε καὶ ἄρκτων.
ἀκόντια δὲ ἕκαστος πολλά, οἱ δὲ καὶ λόγχας αὐτῶν ἔφερον. καὶ οὗτοι μὲν ἐλόχων τῆς Ἰθώμης ἔνθα ἔμελλον ἥκιστα ἔσεσθαι σύνοπτοι· οἱ δὲ ὁπλῖται τῶν Μεσσηνίων καὶ συμμάχων τήν τε ἔφοδον τὴν πρώτην τῶν Λακεδαιμονίων ὑπέμειναν καὶ μετὰ τοῦτο ἦσαν ἤδη καὶ τὰ ἄλλα ἀνδρεῖοι. ἀριθμῷ μὲν δὴ τῶν ἐναντίων ἀπελείποντο, λογάδες δὲ ὄντες ἐμάχοντο πρὸς δῆμον καὶ οὐχ ὁμοίως πρὸς κρείττους, ᾗ καὶ μᾶλλον τῇ τε ἄλλῃ προθυμίᾳ καὶ ταῖς ἐμπειρίαις ἐπὶ πολὺ ἀντεῖχον.
ἐνταῦθα καὶ ὁ στρατὸς τῶν Μεσσηνίων ὁ εὔζωνος, ἀφʼ οὗ καὶ τούτοις ἤρθη τὰ σημεῖα, ἐχρῶντο ἐπὶ τοὺς Λακεδαιμονίους δρόμῳ καὶ περιστάντες ἠκόντιζον ἐς τὰ πλάγια· ὅσοις δὲ καὶ ἐπὶ πλέον μετῆν τόλμης, προσέθεόν τε καὶ ἔτυπτον ἐκ χειρός. οἱ δὲ Λακεδαιμόνιοι, κίνδυνόν σφισι δεύτερον ἐν τῷ αὐτῷ καὶ οὕτως ἀνέλπιστον ὁρῶντες παρόντα, ὅμως οὔτε ἐταράχθησαν ἐπιστρεφόμενοί τε ἐς τοὺς ψιλοὺς ἀμύνεσθαι μὲν ἐπειρῶντο, διὰ δὲ τὴν κουφότητα οὐ χαλεπῶς ἀποφευγόντων ἀπορία τοῖς Λακεδαιμονίοις καὶ ἀπʼ αὐτῆς ἤδη καὶ ὀργὴ γίνεται.
πεφύκασι δέ πως οἱ ἄνθρωποι μάλιστα ἔχειν ἀκρατῶς πρὸς τὰ παρʼ ἀξίαν· καὶ δὴ καὶ τότε οἵ τε ἤδη τραύματα τῶν Σπαρτιατῶν εἰληφότες καὶ ὅσοι κειμένων τῶν παραστατῶν ἐγίνοντο πρὸς τὴν ἔφοδον τῶν ψιλῶν πρῶτοι προεξέθεόν τε, ὁπότε ἴδοιεν ἐπιφερομένους τοὺς ψιλούς, καὶ ὑπὸ θυμοῦ μακροτέρας τὰς διώξεις ἐποιοῦντο ἀποχωρούντων. οἱ δὲ ψιλοὶ τῶν Μεσσηνίων ὡς τὸ πρῶτον ἤρξαντο, κατὰ χώραν τε μένοντας ἔτυπτον καὶ ἐσηκόντιζον καὶ διωκόντων ἔφθανον ἀποφεύγοντες καὶ πειρωμένοις ἀναστρέφειν αὖθις ἐπῄεσαν.
ταῦτα δὲ ἔδρων σποράδην καὶ ἄλλοι κατʼ ἄλλο τῆς τῶν ἐναντίων τάξεως· οἵ τε ὁπλῖται τῶν Μεσσηνίων καὶ συμμάχων θρασύτερον ἐν τῷ τοιῷδε τοῖς κατὰ στόμα αὐτῶν ἐπέκειντο. τέλος δὲ οἱ Λακεδαιμόνιοι τῷ τε χρόνῳ καὶ τοῖς τραύμασιν ἀπαγορεύοντες καὶ ἅμα παρὰ τὸ εἰωθὸς ὑπὸ τῶν ψιλῶν ταρασσόμενοι διαλύουσι τὴν τάξιν· τραπέντων δέ, ἐνταῦθά σφισι πλείω παρεῖχον κακὰ οἱ ψιλοί.
τοὺς δὲ τῶν Λακεδαιμονίων διαφθαρέντας ἐν τῇ μάχῃ συλλαβεῖν μὲν οὐχ οἷά τε ἦν ἀριθμῷ, πείθομαι δὲ εἶναι καὶ αὐτὸς πολλούς. ἡ δὲ οἴκαδε ἀναχώρησις τοῖς μὲν ἄλλοις καθʼ ἡσυχίαν, Κορινθίοις δὲ ἔμελλεν ἔσεσθαι χαλεπή· διὰ πολεμίας γὰρ ἐγίνετο ὁμοίως διά τε τῆς Ἀργείας πειρωμένοις καὶ παρὰ Σικυῶνα ἀνασωθῆναι.
In the fifth year of the reign of Aristodemus, both sides, worn out by the length and costliness of the war, gave notice that they would fight a pitched battle; so they were joined by their allies. The only Peloponnesian people who joined the Lacedaemonians were the Corinthians ; but the Messenians were reinforced by the whole Arcadian levies and by picked Argive and Sicyonian troops. The Lacedaemonians entrusted their centre to the Corinthians, the Helots, and the contingents of the vassal states, while they posted themselves under their kings on either wing: their formation was deeper and closer than it had ever been before. On the other side Aristodemus’ order of battle was as follows. Such of the Arcadians and Messenians as, though strong and brave, were poorly armed he furnished with the best arms he could get, and then, since time was pressing, drew them up in line with the Argives and Sicyonians. His line of battle he made long and thin, that it might not be surrounded by the enemy ; and he also took care that its rear should rest on Mount Ithome. Committing the command of it to Cleonnis, he himself remained behind with Damis and the light troops. These troops included a few slingers or archers, but the mass of them, by the lightness of their equipment and by their personal activity, were equally adapted to advance or retreat. Each man had a corselet or shield, or, lacking these, he wore a garment of goatskin or sheepskin: some were clad in the skins of wild beasts, wolfskins and bearskins being especially worn by the highlanders of Arcadia. Each carried a bundle of darts, and some of them spears as well.
These troops remained in ambush in a place on Mount Ithome, which afforded the best concealment. Meanwhile the heavy infantry of the Messenians and their allies withstood the first onset of the Lacedaemonians and quitted themselves like men. They were outnumbered by the enemy; but on the other hand they were picked troops fighting against militia, and thus by their combined resolution and skill they were able to prolong the conflict. And now the signal was given, and the Messenian light troops came on at a run, and surrounding the Lacedaemonians, poured in a shower of javelins on their flanks, while the bolder spirits ran in and stabbed them at close quarters. Confronted with this second and unlooked-for danger the Lacedaemonians did not quail, but faced towards the skirmishers and endeavoured to repel them. But the ease with which these light troops retired embarrassed the Lacedaemonians, and their embarrassment enraged them. Now nothing is so calculated to put a man beside himself as an indignity. So on the present occasion, the Spartan wounded, and the men who, in consequence of the gaps in the ranks, were exposed to the charge of the skirmishers, rushed out to meet them whenever they saw them coming on, and, their blood being up, pursued the retreating foe to a distance. The Messenian light troops adhered to their tactics : when the enemy stood still they stabbed and shot at him ; when he pursued, they fled faster than he could follow ; and when he tried to fall back, they came on again. This they did dispersedly, at different points of the enemy’s line; and meanwhile their heavy infantry pressed the foe in their front with renewed courage.
At last, exhausted by wounds and the length of the struggle, as well as disordered by the unaccustomed attack of the light troops, the Lacedaemonians broke their ranks. In the rout, they suffered still more severely from the light troops. Their exact losses in the field it was impossible to ascertain, but I am persuaded that they were heavy. While the retreat of the rest to their homes was unmolested, that of the Corinthians must have been difficult ; for whether they attempted to return through Argolis or by Sicyon, their march lay through an enemy’s land.