We have already explained how and when these institutions were first adopted. The conquered nations were compelled to pay a tribute, at first arbitrarily imposed, but under Darius reduced to an annual and regular tax, of which Herodotus has given us a full statement.
Important as this document is, it has nevertheless given occasion to many misapprehensions. The tribute in money has been treated as the only, or, at all events, the principal revenue which the monarch derived from his empire; and, with the customs of Europe before their eyes, authors have imagined the existence of a public exchequer, out of which the expenses of the state were paid, the armies maintained, and the public officers remunerated, etc. Such a mode of proceeding was, however, utterly unknown in the East. The Persian public officers received no appointments in the European sense of the word; the tribute in question furnished nothing more than the private revenue of the king, and, besides his own expenses, was applied to no public purposes whatever, unless, perhaps, to that of conferring presents.
As the end of a financial system adopted by a nation of conquerors must be different from that of all others, so also must the internal regulations belonging to such a system.
The end in question is no other than that of obliging the conquered nations, whose land is esteemed the property of the conquerors, to pay for everything, and provide for the maintenance of the king, the court, and, in some sense, of all the nation.
Herodotus tells us that, independently of the tribute, the whole Persian empire was divided into portions for the support of the king and his army, or his suite, each district being obliged to provide for a certain period. In consequence of this arrangement the payments from the provinces were principally made in the fruits and natural productions of the earth, exacted with a reference to the fertility of each soil and its natural advantages. The best of every country was considered as the property of the king, and was delivered to him by the rulers of the provinces; and as by these means provisions of all sorts were accumulated at the royal residence from every quarter of the empire, there necessarily reigned there an abundance and luxury which corrupted the morals of the court, and introduced those habits of waste and sensuality for which the Persians were so notorious.
Not only, however, was the king’s court to be maintained, but also those of the satraps of each province, which were modelled on that of their master; their suite was often no less numerous, and they kept up a state which often exceeded their income; and as the wants of the monarch were supplied from all parts of his empire, so were theirs from every part of each department. Particular spots were appointed to provide particular necessaries or luxuries, and Herodotus tells us that Masistius, satrap of Babylon, reserved no less than four considerable villages of Babylonia for the support of his Indian hounds.
To these burdens was added the maintenance of the king’s troops, which were quartered in large corps through all the provinces, and which were paid, not out of the king’s private chest, or from the provincial tribute, but by the provinces they occupied.
With these contributions in kind were reckoned the payments in specie, or rather the tributes in uncoined gold and silver, of which Herodotus has afforded us his well-known statement. Whether these were collected by way of a poll-tax, or an income-tax, or in whatever other way, the historian does not inform us; but he assures us that they amounted annually to fourteen thousand five hundred talents. The gold and silver thus collected—the Indians alone paying their tribute in gold—was stored up in ingots, of which the king made use as he found occasion.
We may, however, readily suppose that the sums set down by Herodotus did not always continue the same. The mighty armaments undertaken by the Persian government, especially under Xerxes, called for extraordinary expenses, and necessitated an augmentation of the imposts, as is expressly mentioned. When mercenary troops came to be a part of the Persian establishment, an augmentation of the tribute was a necessary consequence.
Nor were the sums of which the satraps drained the provinces comprehended in those already enumerated. The satrap of Babylon alone received every day more than an Attic medimnus full of silver, which on a moderate computation made up a revenue of more than £100,000 sterling, and the sum paid to the king from the same province amounted to about twice as much.