noon,
a strong south wind sprang up, which carried the vessels of Crispus
against the enemy; and as the casual advantage was improved by his
skilful intrepidity, he soon obtained a complete victory. A hundred
and thirty vessels were destroyed, five thousand men were slain, and
Amandus, the admiral of the Asiatic fleet, escaped with the utmost
difficulty to the shores of Chalcedon. As soon as the Hellespont
was open, a plentiful convoy of provisions flowed into the camp of
Constantine, who had already advanced the operations of the siege.
He constructed artificial mounds of earth of an equal height with the
ramparts of Byzantium. The lofty towers which were erected on that
foundation galled the besieged with large stones and darts from the
military engines, and the battering rams had shaken the walls in several
places. If Licinius persisted much longer in the defence, he exposed
himself to be involved in the ruin of the place. Before he was
surrounded, he prudently removed his person and treasures to Chalcedon
in Asia; and as he was always desirous of associating companions to the
hopes and dangers of his fortune, he now bestowed the title of Caesar
on Martinianus, who exercised one of the most important offices of the
empire.

Such were still the resources, and such the abilities, of Licinius,
that, after so many successive defeats, he collected in Bithynia a new
army of fifty or sixty thousand men, while the activity of Constantine
was employed in the siege of Byzantium. The vigilant emperor did not,
however, neglect the last struggles of his antagonist. A considerable
part of his victorious army was transported over the Bosphorus in small
vessels, and the decisive engagement was fought soon after their landing
on the heights of Chrysopolis, or, as it is now called, of Scutari. The
troops of Licinius, though they were lately raised, ill armed, and
worse disciplined, made head against their conquerors with fruitless but
desperate valor, till a total defeat, and a slaughter of five and twenty
thousand men, irretrievably determined the fate of their leader. He
retired to Nicomedia, rather with the view of gaining some time for
negotiation, than with the hope of any effectual defence. Constantia,
his wife, and the sister of Constantine, interceded with her brother in
favor of her husband, and obtained from his policy, rather than from
his compassion, a solemn promise, confirmed by an oath, that after the
sacrifice of Mar