Xerxes Five Million Men

[floofthegoof]

My feeling is that 100,000 men, with assorted hangers-on, might have been achieved, provided that there were adequate naval resources and they were well organized. Armies of that general size could be assembled (i.e. the Romans at Cannae, the First Crusade later) for at least a limited period of time. Two hundred thousand soldiers is, I suspect, unrealistic.

Last year I read all of Livy, and this is what I'd like to bring up about the war with Hannibal. Cannae happened very early in Roman history, and the army was made almost entirely of Italians. Rome at that time only controlled part of Sicily, Sardinia and Spain. Nothing like the empire of Xerxes. Another thing that is notable about that time period, is that Hannibal's army of ~60,000 was able to forage in Italy for 10 years! This is about 200 years after the Persian wars. That makes me guess that it would take a much larger force to starve in 1 season, although I don't really know the difference between the climate in northern greece and southern Italy.

Other things said regarding numbers:

...Next to it is the Thasian city of Stryme; between them runs the river Lisus, which now could not furnish water enough for Xerxes' army, but was exhausted.

CIX. After he had crossed the dried-up bed of the river Lisus, he passed by the Greek cities of Maronea, Dicaea, and Abdera. He passed by these, and along certain well-known lakes near them: the Ismarid lake that lies between Maronea and Stryme, and near Dicaea the Bistonian lake, into which the rivers Travus and Compsantus discharge. Near Abdera Xerxes passed no well-known lake, but crossed the river Nestus where it flows into the sea. From these regions he passed by the cities of the mainland, one of which has near it a lake of about thirty stadia in circuit, full of fish and very salty; this was drained dry by watering the beasts of burden alone. This city is called Pistyrus....

CXXVII. When he had arrived at Therma, Xerxes quartered his army there. Its encampment by the sea covered all the space from Therma and the Mygdonian country to the rivers Lydias and Haliacmon, which unite their waters in one stream and so make the border between the Bottiaean and the Macedonian1 territory. In this place the foreigners lay encamped; of the rivers just mentioned, the Cheidorus, which flows from the Crestonaean country, was the only one which could not suffice for the army's drinking but was completely drained by it....

CLXXXIV. Until the whole host reached this place and Thermopylae it suffered no hurt, and calculation proves to me that its numbers were still such as I will now show. The ships from Asia were twelve hundred and seven in number, and including the entire host of nations involved, there were a total of two hundred and forty-one thousand and four hundred men, two hundred being reckoned for each ship. On board all these ships were thirty fighting men of the Persians and Medes and Sacae in addition to the company which each had of native fighters; the number of this added contingent is thirty-six thousand, two hundred and ten. To this and to the first number I add the crews of the ships of fifty oars, calculating eighty men for each, whether there were actually more or fewer. Now seeing that, as has already been said, three thousand of these vessels were assembled, the number of men in them must have been two hundred and forty thousand. These, then, were the ships' companies from Asia, and the total number of them was five hundred and seventeen thousand, six hundred and ten. There were seven hundred thousand and one hundred footsoldiers and eighty thousand cavalrymen; to these I add the Arabian camel-riders and Libyan charioteers, estimating them to have been twenty thousand in number. The forces of sea and land added together would consist of two million, three hundred and seventeen thousand, six hundred and ten men. So far I have spoken of the force which came from Asia itself, without the train of servants which followed it and the companies of the grain-bearing craft.

CLXXXV. I must, however, also take into account the force brought from Europe, and I will rely on my best judgment in doing so. The Greeks of Thrace and the islands off Thrace furnished one hundred and twenty ships, and the companies of these ships must then have consisted of twenty-four thousand men. As regards the land army supplied by all the nations--Thracians, Paeonians, Eordi, Bottiaei, Chalcidians, Brygi, Pierians, Macedonians, Perrhaebi, Enienes, Dolopes, Magnesians, Achaeans, dwellers on the coast of Thrace--of all these I suppose the number to have been three hundred thousand. When these numbers are added to the numbers from Asia, the sum total of fighting men is two million, six hundred and forty-one thousand, six hundred and ten.

CLXXXVI. This then is the number of soldiers. As for the service-train which followed them and the crews of the light corn-bearing vessels and all the other vessels besides which came by sea with the force, these I believe to have been not fewer but more than the fighting men. Suppose, however, that they were equal in number, neither more nor fewer. If they were equal to the fighting contingent, they made up as many tens of thousands as the others. The number, then, of those whom Xerxes son of Darius led as far as the Sepiad headland and Thermopylae was five million, two hundred and eighty-three thousand, two hundred and twenty.

CLXXXVII. That is the number of Xerxes' whole force. No one, however, can say what the exact number of cooking women, and concubines, and eunuchs was, nor can one determine the number of the beasts of draught and burden, and the Indian dogs which accompanied the host; so many of them were there. It is accordingly not surprising to me that some of the streams of water ran dry. I do, however, wonder how there were provisions sufficient for so many tens of thousands, [2] for calculation shows me, that if each man received one choenix of wheat a day and no more, eleven hundred thousand and three hundred and forty bushels would be required every day.(sub1) In this calculation I take no account of the provisions for the women, eunuchs, beasts of burden and dogs. Of all those tens of thousands of men, there was not one, as regards looks and grandeur, worthier than Xerxes himself to hold that command.

sub1: The figure is wrong. Reckoning 48 choenixes to the medimnus, Herodotus has of course divided 5,283, 220 by 48. The right quotient is 110,067.083. 5,280,000 divided by 48 produces 110,000; 3220 divided by 48 leaves a dividend, after the first stage of division, of 340, and this for some unexplained reason Herodotus has added to the quotient. The medimnus is the chief Attic unit for dry measure; said to be the equivalent of six gallons.

footnote from ed. A. D. Godley copied from perseus.tufts.edu

Here is another clue regarding the bridge at the Hellspont:

XXXVI. So this was done by those who were appointed to the thankless honor, and new engineers set about making the bridges. They made the bridges as follows: in order to lighten the strain of the cables, they placed fifty-oared ships and triremes alongside each other, three hundred and sixty to bear the bridge nearest the Euxine sea, and three hundred and fourteen to bear the other; all lay obliquely to the line of the Pontus and parallel with the current of the Hellespont. After putting the ships together they let down very great anchors, both from the end of the ships on the Pontus side to hold fast against the winds blowing from within that sea, and from the other end, towards the west and the Aegean, to hold against the west and south winds. They left a narrow opening to sail through in the line of fifty-oared ships and triremes, that so whoever wanted to could sail by small craft to the Pontus or out of it. After doing this, they stretched the cables from the land, twisting them taut with wooden windlasses; they did not as before keep the two kinds apart, but assigned for each bridge two cables of flax and four of papyrus. All these had the same thickness and fine appearance, but the flaxen were heavier in proportion, for a cubit of them weighed a talent. When the strait was thus bridged, they sawed logs of wood to a length equal to the breadth of the floating supports,3 and laid them in order on the taut cables; after placing them together they then made them fast. After doing this, they carried brushwood onto the bridge; when this was all laid in order they heaped earth on it and stamped it down; then they made a fence on either side, so that the beasts of burden and horses not be frightened by the sight of the sea below them...

LVI. When Xerxes had passed over to Europe, he viewed his army crossing under the lash. Seven days and seven nights it was in crossing, with no pause.

I'll ask another question, how could we figure out the smallest army to reasonably take 7 non-stop days to cross such a bridge? Herodotus does not simply give us a number, he also gives us many other clues to the size of this army. All these clues could be fabricated, but to prove that we need to find inconsistencies.