, shown conspicuously in the case of Pertinax. There were several important battles fought in these campaigns; and one of them has become celebrated for the legend of the Thundering Legion. In a battle against the Quadi in 174, the day seemed to be going in favour of the foe, when on a sudden arose a great storm of thunder and rain the lightning struck the barbarians with terror, and they turned to rout. In later days this storm was said to have been sent in answer to the prayers of a legion which contained many Christians, and the name Thundering Legion should be given to it on this account. The title of Thundering Legion is known at an earlier date, so this part of the story at least cannot be true; but the aid of the storm is acknowledged by one of the scenes carved on Antonine's Column at Rome, which commemorates these wars. The settlement made after these troubles might have been more satisfactory but for an unexpected rising in the east. Avidius Cassius, an able captain who had won renown in the Parthian wars, was at this time chief governor of the eastern provinces. By whatever means induced, he had conceived the project of proclaiming himself emperor as soon as Marcus, who was then in feeble health, should die; and a report having been conveyed to him that Marcus was dead, Cassius did as he had planned. Marcus, on hearing the news, immediately patched up a peace and returned home to meet this new peril. The e
