The Persians readily gave quarter to the enemy who asked it, and generally treated their prisoners of war with much kindness. Personages of importance, as monarchs or princes, either preserved their titles and their liberty, with even a certain nominal authority, or received appanages in other parts of the Persian territory, or, finally, were retained about the Court as friends and table-companions of the Great King. Those of less rank were commonly given lands and houses in some province remote from their own country, and thenceforth held the same position as the great mass of the subject races. Exchanges of prisoners do not seem to have been thought of. In a few cases, persons, whom we should regard as prisoners of war, experienced some severities, but probably only when they were viewed by the Persians, not as fair enemies, but as rebels. Rebels were, of course, liable to any punishment which the king might think it right to inflict upon them, and there were occasions after a revolt when sentences of extreme rigor were passed upon the persons considered to have been most in fault. According to Herodotus, three thousand Babylonians were crucified by order of Darius, to punish their revolt from him; and, though this is probably an exaggeration, it is certain that sometimes, where an example was thought to be required, the Persians put to death, not only the leader of a rebellion, but a number of his chief adherents. Crucifixion, or, at any rate, impalement of some sort, was in such cases the ordinary punishment. Sometimes, before a rebel was executed, he was kept for a while chained at the king’s door, in order that there might be no doubt of his capture.
Among the minor punishments of rebellion were branding, and removal of the rebels en masse from their own country, to some remote locality. In this latter case, they were merely treated in the same way as ordinary prisoners of war. In the former, they probably became royal slaves attached to the household of the monarch.
Though the Persians were not themselves a nautical people, they were quite aware of the great importance of a navy, and spared no pains to provide themselves with an efficient one. The conquests of Phoenicia, Cyprus, Egypt, and the Greek islands were undertaken, it is probable, mainly with this object; and these parts of the Empire were always valued chiefly as possessing skilled seamen, vessels, and dockyards, from which the Great King could draw an almost inexhaustible supply of war-ships and transports. Persia at times had the complete command of the Mediterranean Sea, and bore undisputed sway in the Levant during almost the whole period of her existence as an empire.
The war-ship preferred by the best naval powers during the whole period of the Persian rule was the trireme, or decked galley impelled by rowers sitting in three tiers, or banks, one above another. This vessel, the invention of the Corinthians, had been generally adopted by the nations bordering on the Mediterranean in the interval between B.C. 700 and B.C. 525, when by the reduction of Phoenicia, Cyprus, and Egypt, the Persians obtained the command of the sea. Notwithstanding the invention of quadriremes by the Carthaginians before B.C. 400, and of quinqueremes by Dionysius the Elder soon after, the trireme stood its ground, and from first to last the Persian fleets were mainly composed of this class of vessels.
The trireme was a vessel of a considerable size, and was capable of accommodating two hundred and thirty persons. Of these, two hundred constituted the crew, while the remaining thirty were men-at-arms, corresponding to our own “marines.” By far the greater number of the crew consisted of the rowers, who probably formed at least nine-tenths of the whole, or one hundred and eighty out of the two hundred. The rowers sat, not on benches running right across the vessel, but on small seats attached to its side. They were arranged, as before stated, in three tiers, not, however, directly one over the head of another, but obliquely, each at once above and behind his fellow. Each rower had the sole management of a single oar, which he worked through a hole pierced in the side of the vessel. To prevent his oar from slipping he had a leathern strap, which he twisted round it, and fastened to the thole, probably by means of a button. The remainder of the crew comprised the captain, the steersman, the petty officers, and the sailors proper, or those whose office it was to trim the sails and look to the rigging. The trireme of Persian times had, in all cases, a mast, and at least one sail, which was of a square shape, hung across the mast by means of a yard or spar, like the “square-sail” of a modern vessel. The rudder was composed of two broad-bladed oars, one on either side of the stern, united, however, by a cross-bar, and managed by a single steersman. The central part of a trireme was always decked, and on this deck, which was generally level with the bulwarks, stood and fought the men-at-arms, whose business it was to engage the similar force of the enemy.
The weapon of the trireme, with which she was intended chiefly to attack her foe, was the beak. [PLATE XXXI., Fig. 3.] This consisted of a projection from the prow of the ship, either above or below the water-line, strongly shod with a casting of iron, and terminating either in the head of an animal, or in one or more sharp points. A trireme was expected, like a modern “ram,” to use this implement against the sides of her adversary’s vessels, so as to crush them in and cause the vessels to sink. Driven by the full force of her oars, which impelled her almost at the rate of a modern steamer, she was nearly certain, if she struck her adversary full, to send ship and men to the bottom. She might also, it is true, greatly damage herself; but, to preclude this, it was customary to make the whole prow of a trirene exceedingly strong, and, more particularly, to support it with beams at the side which tended to prevent the timbers from starting.
Besides triremes, which constituted the bulk of the Persian navy, there were contained in their fleet various other classes of vessels, as triaconters, penteconters, cercuri, and others. Triaconters were long, sharp-keeled ships, shaped very much like a trireme, rowed by thirty rowers, who sat all upon a level, like the rowers in modern boats, fifteen on either side of the vessel. [PLATE XXXI., Fig. 2.] Penteconters were very similar, the only difference being in the number of the oars and oarsmen. [PLATE XXXI., Fig. 4.] Both these classes of vessels seem to have been frequently without sails. Cercuri were light boats, very long and swift. They are said to have been invented by the Cyprians, and were always peculiar to Asia.
The transports of the Persians were either for the conveyance of horses or of food. Horse-transports were large clumsy vessels, constructed expressly for the service whereon they were used, possessing probably a special apparatus for the embarkation and disembarkation of the animals which they were built to carry. Corn-transports seem to have been of a somewhat lighter character. Probably, they varied very considerably in their size and burthen, including huge and heavy merchantmen on the one hand, and a much lighter and smaller craft on the other.
The Persians used their ships of war, not only for naval engagements, but also for the conveyance of troops and the construction of bridges. Accustomed to pass the great streams which intersect Western Asia by bridges of boats, which were permanently established wherever an unfordable river crossed any of the regular routes connecting the provinces with the capital, the Persians, when they proceeded to carry their arms from Asia into Europe, conceived the idea of bridging the interval between the continents, which did not much exceed the width of one of the Mesopotamian streams, by constructions similar in principle and general character to those wherewith long use had made them familiar in their own country. Ranging a number of vessels side by side, at no great distance one from another, parallel with the course of the stream, which ran down the straits, anchoring each vessel stem and stern to keep it in place, and then laying upon these supports a long wooden platform, they made a floating bridge of considerable strength, reaching from the Asiatic to the European coast, on which not only men, but horses, camels, chariots, and laden carts passed over safely from the one continent to the other. Only, as the water which they had to cross was not a river, but an arm of the real salt sea, and might, therefore, in case of a storm, show a might and fury far beyond a river’s power, they thought it necessary to employ, in lieu of boats, the strongest ships which they possessed, namely, triremes and pentecon-ters, as best capable of withstanding the force of an angry sea. Bridges of this kind were intended sometimes for temporary, sometimes for permanent constructions. In the latter case, great care and much engineering skill was lavished on their erection. The shore cables, which united the ships together, and sustained the actual bridge or platform, were made of most carefully selected materials, and must have been of enormous strength; the ships were placed in close proximity one to another; and by the substitution of a double for a single line—of two bridges, in fact, for one—the solidity of the work was very largely augmented. Yet, rare as was the skill shown, solid and compact as were the causeways thus thrown by human art over the sea, they were found inadequate to the end desired. The great work of Xerxes, far the most elaborate of its class, failed to withstand the fury of the elements for a single year; the bridge, constructed in one autumn, was utterly swept away in the next; and the army which had crossed into Europe by its aid had to embark as it best could, and return on board ship to Asia.
As the furnishing of the Persian fleet was left wholly to the subject nations of the Empire, so was its manning intrusted to them almost entirely. Phoenicians, Syrians, Egyptians, Cypriots, Cilicians, Lycians, Pamphylians, Carians, Greeks, equipped in the several costumes of their countries, served side by side in their respective contingents of ships, thereby giving the fleet nearly the same motley appearance which was presented by the army. In one respect alone did the navy exhibit superior uniformity to their sister service—the epibatae, or “marines,” who formed the whole fighting force of the fleet while it kept the sea, was a nearly homogeneous body, consisting of three races only (two of which were closely allied), namely, Persians, Medes, and Sacse. Every ship had thirty such men on board; all, it is probable, uniformly armed, and all animated by one and the same spirit. To this force the Persians must have owed it mainly that their great fleets were not mere congeries of mutually repellant atoms, but were capable of acting against an enemy with a fair amount of combination and singleness of purpose.