Herodotus, Histories 9.28–32: The armies at Plataea

After this the Hellenes were ranged as follows, both those of them who came in continually afterwards and those who had come at the first. The right wing was held by ten thousand Lacedemonians; and of these the five thousand who were Spartans were attended by thirty-five thousand Helots serving as light-armed troops, seven of them appointed for each man. To stand next to themselves the Spartans chose the Tegeans, both to do them honour and also because of their valour; and of these there were one thousand five hundred hoplites. After these were stationed five thousand Corinthians, and they had obtained permission from Pausanias that the three hundred who were present of the men of Potidaia in Pallene should stand by their side. Next to these were stationed six hundred Arcadians of Orchomenos; and to these three thousand Sikyonians. Next after these were eight hundred Epidaurians: by the side of these were ranged a thousand Troizenians: next to the Troizenians two hundred Lepreates: next to these four hundred of the men of Mikene and Tiryns; and then a thousand Phliasians. By the side of these stood three hundred Hermionians; and next to the Hermionians were stationed six hundred Eretrians and Styrians; next to these four hundred Chalkidians; and to these five hundred men of Amprakia. After these stood eight hundred Leucadians and Anactorians; and next to them two hundred from Pale in Kephallenia. After these were ranged five hundred Eginetans; by their side three thousand Megarians; and next to these six hundred Plataians. Last, or if you will first, were ranged the Athenians, occupying the left wing, eight thousand in number, and the commander of them was Aristeides the son of Lysimachos.

These all, excepting those who were appointed to attend the Spartans, seven for each man, were hoplites, being in number altogether three myriads eight thousand and seven hundred. This was the whole number of hoplites who were assembled against the Barbarian; and the number of the light-armed was as follows:—of the Spartan division thirty-five thousand men, reckoning at the rate of seven for each man, and of these every one was equipped for fighting; and the light-armed troops of the rest of the Lacedemonians and of the other Hellenes, being about one for each man, amounted to thirty-four thousand five hundred.

Of the light-armed fighting men the whole number then was six myriads nine thousand and five hundred; and of the whole Hellenic force which assembled at Plataia the number (including both the hoplites and the light-armed fighting men) was eleven myriads all but one thousand eight hundred men; and with the Thespians who were present the number of eleven myriads was fully made up; for there were present also in the army those of the Thespians who survived, being in number about one thousand eight hundred, and these too were without heavy arms. These then having been ranged in order were encamped on the river Asopos.

Meanwhile the Barbarians with Mardonios, when they had sufficiently mourned for Masistios, being informed that the Hellenes were at Plataia came themselves also to that part of the Asopos which flows there; and having arrived there, they were ranged against the enemy by Mardonios thus:—against the Lacedemonians he stationed the Persians; and since the Persians were much superior in numbers, they were arrayed in deeper ranks than those, and notwithstanding this they extended in front of the Tegeans also: and he ranged them in this manner,—all the strongest part of that body he selected from the rest and stationed it opposite to the Lacedemonians, but the weaker part he ranged by their side opposite to the Tegeans. This he did on the information and suggestion of the Thebans. Then next to the Persians he ranged the Medes; and these extended in front of the Corinthians, Potidaians, Orchomenians and Sikyonians. Next to the Medes he ranged the Bactrians; and these extended in front of the Epidaurians, Troizenians, Lepreates, Tirynthians, Mykenians and Phliasians. After the Bactrians he stationed the Indians; and these extended in front of the Hermionians, Eretrians, Styrians and Chalkidians. Next to the Indians he ranged the Sacans, who extended in front of the men of Amprakia, the Anactorians, Leucadians, Palians and Eginetans. Next to the Sacans and opposite to the Athenians, Plataians and Megarians, he ranged the Boeotians, Locrians, Malians, Thessalians, and the thousand men of the Phokians: for not all the Phokians had taken the side of the Medes, but some of them were even supporting the cause of the Hellenes, being shut up in Parnassos; and setting out from thence they plundered from the army of Mardonios and from those of the Hellenes who were with him. He ranged the Macedonians also and those who dwell about the borders of Thessaly opposite to the Athenians.

These which have been named were the greatest of the nations who were arrayed in order by Mardonios, those, I mean, which were the most renowned and of greatest consideration: but there were in his army also men of several other nations mingled together, of the Phrygians, Thracians, Mysians, Paionians, and the rest; and among them also some Ethiopians, and of the Egyptians those called Hermotybians and Calasirians, carrying knives, who of all the Egyptians are the only warriors. These men, while he was yet at Phaleron, he had caused to disembark from the ships in which they served as fighting-men; for the Egyptians had not been appointed to serve in the land-army which came with Xerxes to Athens. Of the Barbarians then there were thirty myriads, as has been declared before; but of the Hellenes who were allies of Mardonios no man knows what the number was, for they were not numbered; but by conjecture I judge that these were assembled to the number of five myriads. These who were placed in array side by side were on foot; and the cavalry was ranged apart from them in a separate body.