But divine Providence frustrated the whole plan of Galerius Maximianus. For, Constantius Chlorus dying in Britain, in the year 306, the soldiery by acclamation made his son Constantine, who afterward by his achievements obtained the title of "the Great," Augustus or Emperor; and the tyrant Galerius was obliged to submit, and even to approve this adverse event. Soon after a civil war broke out. For Maxentius, the son-in-law of Galerius Maximianus, being indignant that Galerius should prefer Severus before him, and invest him with imperial power, himself assumed the purple, and took his father, Maximianus Herculius, for his colleague in the empire. In the midst of these commotions Constantine, beyond all expectation, made his way to the imperial throne. The western Christians, those of Italy and Africa excepted, enjoyed a good degree of tranquillity and liberty during these civil wars. But the oriental churches experienced various fortune, adverse or tolerable, according to the political changes from year to year. At length Galerius Maximianus, who had been the author of the heaviest calamities, being brought low by a terrific and protracted disease, and finding himself ready to die, in the year 311, issued a decree which restored peace to them, after they had endured almost unbounded sufferings. After the death of Galerius Maximianus, Caius Galerius Maximianus and Caius Valerius Licinius divided between themselves the provinces which had been governed by Galerius. At the same time Maxentius, who held Africa and Italy, determined to make war upon Constantine, who governed in Spain and Gaul, in order to bring all the West under his authority. Constantine anticipated his designs, marched his army into Italy in the year 312, and in a battle fought at the Milvian bridge, near Rome, routed the army of Maxentius. In the flight the bridge broke down, and Maxentius fell into the Tiber and was drowned. After this victory Constantine, with his colleague Licinius, immediately gave full liberty to the Christians of living according to their own institutions and laws; and this liberty was more clearly defined the following year, A.D. 313, in a new edict drawn up at Milan. Caius Galerius Maximinus, indeed, who reigned in the East, was projecting new calamities for the Christians, and menacing the emperors of the West with war; but being vanquished by Licinius, he put an end to his own life, in the year 313, by swallowing poison, at Tarsus.