Note 82 — Below is a copy of the deeds of the divine Augustus, by which he subjected the whole world to the dominion of the Roman people, and of the amounts which he expended upon the commonwealth and the Roman people, as engraved upon two brazen columns which are set up at Rome.1
Reading edition
This was in 759. In 741 (Dio, LIV, 25) Augustus had fixed the term of service at twelve years for the prætorians and sixteen for the legionaries. The gift to the former upon discharge was also larger. In 758 the terms of service were lengthened to sixteen and twenty years. Cf. Dio, LV, 23. In LV, 25, Dio writes of this year 759: “Augustus contributed, in his own name and in that of Tiberius, money for that treasury which is called the military.” The sum so given was $8,500,000. Tributary states and kings also assisted. But income could not keep pace with expenses. The old tax of a twentieth on bequests, except when the heir was a very near relative, or very poor, was revived, much to the discontent of the Roman people. Cf. Dio, LV, 25. Other taxes were devised, such as that of one per cent on sales. Cf. Tac. Ann. I, 78. On sales of slaves two per cent was exacted. Cf. Dio, LV, 31.
A glance at the military establishment of Augustus may help to some idea of its vast expense. Mommsen discusses the matter in detail (R. G. pp. 68-76). Augustus seems to have left at his death a standing army of twenty-five legions. Each legion approximated seven thousand men, giving a total of 175,000 soldiers. His legions were numbered from one to twenty-two. The number twenty-five is accounted for as follows: the seventeenth, eighteenth and nineteenth had been exterminated under the leadership of Varus. But there were three legions, one in Africa, one in Syria and one in Cyrenaica, bearing the title third, and the fourth, fifth, sixth and tenth were each double. After Actium, Augustus disbanded the legions numbered above twelve (cf. his colonies of veterans at this time, numbering 120,000 men, c. XV). But by reason of the repetitions above alluded to, the legions bearing the numbers up to twelve, really amounted to eighteen. These duplications may have risen from the absorption into Augustus’ army of legions bearing the same numbers from the forces of Lepidus and later from those of Antony. In 759, eight new legions, the thirteenth to the twentieth, seem to have been enrolled, in view of the German and Pannonian wars. This made twenty six. Three were lost with Varus, and their numbers, seventeen, eighteen and nineteen, seem never to have been restored to the list. To offset this loss in a measure, two new legions, the twenty-first and twenty-second were levied. Thus the twenty-five remaining at the death of Augustus are accounted for. Such an establishment was enormously and increasingly expensive. Pliny, Hist. Nat., VII, 45.