In this way the people were caught between the upper and the nether millstone. The actual quantity of bullion taken from them was greater, the lower prices of their property fell, and arrears of taxes accumulated precisely as Pliny described the accumulation of arrears of rent. These arrears were carried over from reign to reign, and even from century to century; and Petronius, the father-in-law of Valens, is said to have precipitated the rebellion of Procopius, by exacting the tribute unpaid since the death of Aurelian a hundred years before.
The processes employed in the collection of the revenue were severe. Torture was freely used,50 and slavery was the fate of defaulters. Armed with such power, the publicans held debtors at their mercy. Though usury was forbidden, the most lucrative part of the trade was opening accounts with the treasury, assuming debts, and charging interest sometimes as high as fifty per cent. Though, as prices fell, the pressure grew severer, the abuses of the administration were never perhaps worse than toward the end of the Republic. In his oration against Verres, Cicero said the condition of the people had become intolerable: “All the provinces are in mourning, all the nations that are free are complaining; every kingdom is expostulating with us about our covetousness and injustice.”51
The well-known transactions of Brutus are typical of what went on wherever the Romans marched. Brutus lent the Senate of Salaminia at forty-eight per cent a year. As the contract was illegal, he obtained two decrees of the Senate at Rome for his protection, and then to enforce payment of his interest, Scaptius, his man of business, borrowed from the governor of Cilicia a detachment of troops. With this he blockaded the Senate so closely that several members starved to death. The Salaminians, wanting at all costs to free themselves from such a load, offered to pay off both interest and capital at once; but to this Brutus would not consent, and to impose his own terms upon the province he demanded from Cicero more troops, “only fifty horse.”52
When at last, by such proceedings, the debtors were so exhausted that no torment could wring more from them, they were sold as slaves; Nicodemus, king of Bithynia, on being reproached for not furnishing his contingent of auxiliaries, replied that all his able-bodied subjects had been taken by the farmers of the revenue.53 Nor, though the administration doubtless was better regulated under the Empire than under the Republic, did the oppression of the provinces cease. Juvenal, who wrote about 100, implored the young noble taking possession of his government to put some curb upon his avarice, “to pity the poverty of the allies. You see the bones of kings sucked of their very marrow.”54 And though the testimony of Juvenal may be rejected as savouring too much of poetical licence, Pliny must always be treated with respect. When Maximus was sent to Achaia, Pliny thought it well to write him a long letter of advice, in which he not only declared that to wrest from the Greeks the shadow of liberty left them would be “durum, ferum, barbarumque;” but adjured him to try to remember what each city had been, and not to despise it for what it was.55
Most impressive, perhaps, of all, is the statement of Dio Cassius that the revolt led by Boadicea in Britain in 61 A.D., which cost the Romans seventy thousand lives, was provoked by the rapacity of Seneca, who, having forced a loan of ten million drachmas ($1,670,000) on the people at usurious interest, suddenly withdrew his money, thereby inflicting intense suffering.56 As Pliny said with bitterness and truth, “The arts of avarice were those most cultivated at Rome.”57
The stronger type exterminated the weaker; the money-lender killed out the husbandman; the race of soldiers vanished, and the farms, whereon they had once flourished, were left desolate. To quote the words of Gibbon: “The fertile and happy province of Campania … extended between the sea and the Apennines from the Tiber to the Silarus. Within sixty years after the death of Constantine, and on the evidence of an actual survey, an exemption was granted in favour of three hundred and thirty thousand English acres of desert and uncultivated land; which amounted to one-eighth of the whole surface of the province.”58
It is true that Gibbon, in this paragraph, described Italy as she was in the fourth century, just before the barbarian invasions, but a similar fate had overtaken the provinces under the Cæsars. In the reign of Domitian, according to Plutarch, Greece had been almost depopulated.
“She can with much difficulty raise three thousand men, which number the single city of Megara sent heretofore to the battle of Platæa… For of what use would the oracle be now, which was heretofore at Tegyra or at Ptous? For scarcely shall you meet, in a whole day’s time, with so much as a herdsman or shepherd in those parts.”59
Wallon has observed that Rome, “in the early times of the Republic, was chiefly preoccupied with having a numerous and strong population of freemen. Under the Empire she had but one anxiety – taxes.”60
To speak with more precision, force changed the channel through which it operated. Native farmers and native soldiers were needless when such material could be bought cheaper in the North or East. With money the cohorts could be filled with Germans; with money, slaves and serfs could be settled upon the Italian fields; and for the last century, before the great inroads began, one chief problem of the imperial administration was the regulation of the inflow of new blood from without, lacking which the social system must have collapsed.
The later campaigns on the Rhine and the Danube were really slave-hunts on a gigantic scale. Probus brought back sixteen thousand men from Germany, “the bravest and most robust of their youth,” and distributed them in knots of fifty or sixty among the legions. “Their aid was now become necessary… The infrequency of marriage, and the ruin of agriculture, affected the principles of population; and not only destroyed the strength of the present, but intercepted the hope of future generations.”61
His importations of agricultural labour were much more considerable. In a single settlement in Thrace, Probus established one hundred thousand Bastarnæ; Constantius Chlorus is said to have made Gaul flourish by the herds of slaves he distributed among the landlords; in 370, large numbers of Alemanni were planted in the valley of the Po, and on the vast spaces of the public domain there were barbarian villages where the native language and customs were preserved.
Probably none of these Germans came as freemen. Many, of course, were captives sold as slaves, but perhaps the majority were serfs. Frequently a tribe, hard pressed by enemies, asked leave to pass the frontier, and settle as tributaries, that is to say as coloni. On one such occasion Constantius II. was nearly murdered. A body of Limigantes, who had made a raid, surrendered, and petitioned to be given lands at any distance, provided they might have protection. The emperor was delighted at the prospect of such a harvest of labourers, to say nothing of recruits, and went among them to receive their submission. Seeing him alone, the barbarians attacked him, and he escaped with difficulty. His troops slaughtered the Germans to the last man.
This unceasing emigration gradually changed the character of the rural population, and a similar alteration took place in the army. As early as the time of Cæsar, Italy was exhausted; his legions were mainly raised in Gaul, and as the native farmers sank into serfdom or slavery, and then at last vanished, recruits were drawn more and more from beyond the limits of the Empire. At first they were taken singly, afterwards