Page:Decline and Fall of the Roman Empire vol 1 (1897).djvu/311

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OF THE ROMAN EMPIRE
237

CHAPTER X

The Emperors Decius, Gallus, Æmilianus, Valerian, and Gallienus—The general Irruption of the Barbarians—The thirty Tyrants

The nature of the subject, A.D. 248-268 From the great secular games celebrated by Philip to the death of the emperor Gallienus, there elapsed twenty years of shame and misfortune. During that calamitous period, every instant of time was marked, every province of the Roman world was afflicted, by barbarous invaders and military tyrants, and the ruined empire seemed to approach the last and fatal moment of its dissolution. The confusion of the times and the scarcity of authentic memorials oppose equal difficulties to the historian, who attempts to preserve a clear and unbroken thread of narration.[1] Surrounded with imperfect fragments, always concise, often obscure, and sometimes contradictory, he is reduced to collect, to compare, and to conjecture: and though he ought never to place his conjectures in the rank of facts, yet the knowledge of human nature, and of the sure operation of its fierce and unrestrained passions, might, on some occasions, supply the want of historical materials.

The emperor Philip There is not, for instance, any difficulty in conceiving that the successive murders of so many emperors had loosened all the ties of allegiance between the prince and people; that all the generals of Philip were disposed to imitate the example of their master; and that the caprice of armies, long since habituated to frequent and violent revolutions, might every day raise to the throne the most obscure of their fellow-soldiers. History can only add, that the rebellion against the emperor Philip broke out in the summer of the year two hundred and forty-nine, among the legions of Mæsia, and that a subaltern officer,[2] named Marinus, was the object of their seditious choice. Philip was
  1. [We have almost no sources for Philip's reign. Gibbon mentions no events during the years between his accession in 244 and the secular games in 248. An expedition led by Philip himself against the Carpi seems to have been the most important occurrence.]
  2. The expression used by Zosimus [i. 20] and Zonaras [xii. 19] may signify that Marinus commanded a century, a cohort, or a legion.