In the year 312, Verona was besieged by Constantine, who bore down upon it from the pass of the Mount Cenis. Gibbon[2] gives an account of this event as follows: “From Milan to Rome the Aemilian and Flaminian highways offered an easy march of about four hundred miles; but though Constantine was impatient to encounter the tyrant (Maxentius), he prudently directed his operations against another army of Italians, who, by their strength and position, might either oppose his progress, or, in case of a misfortune, might intercept his retreat. Ruricius Pompeianus, a general distinguished by his valour and ability, had under his command the city of Verona, and all the troops that were stationed in the province of Venetia. As soon as he was informed that Constantine was advancing towards him, he detached a large body of cavalry, which was defeated in an engagement near Brescia, and pursued by the Gallic legions as far as the gates of Verona. The necessity, the importance, and the difficulties of the siege of Verona, immediately presented themselves to the sagacious mind of Constantine. The city was accessible only by a narrow peninsula towards the west, as the other three sides were surrounded by the Adige, a rapid river, which covered the province of Venetia, from whence the besieged derived an inexhaustible supply of men and provisions. It was not without great difficulty, and after several fruitless attempts, that Constantine found means to pass the river at some distance above the city, and in a place where the torrent was less violent. He then encompassed Verona with strong lines, pushed his attacks with prudent vigour, and repelled a desperate sally of Pompeianus. That intrepid general, when he had used every means of defence that the strength of the place or that of the garrison could afford, secretly escaped from Verona, anxious not for his own but for the public safety. With indefatigable diligence he soon collected an army sufficient either to meet Constantine in the field, or to attack him if he obstinately remained within his lines. The emperor, attentive to the motions, and informed of the approach of so formidable an enemy, left a part of his legions to continue the operations of the siege, whilst, at the head of those troops on whose valour and fidelity he more particularly depended, he advanced in person to engage the general of Maxentius. The army of Gaul was drawn up in two lines, according to the practice of war; but their experienced leader, perceiving that the numbers of the Italians far exceeded his own, suddenly changed his dispositions, and, reducing the second, extended the front of this first line to a just proportion with that of the enemy. Such evolutions, which only veteran troops can execute without confusion in a moment of danger, commonly prove decisive: but as this engagement began towards the close of the day, and was contested with great obstinacy during the whole