engaged in ecclesiastical discussions and adjudicating by councils ecclesiastical cases (§ 62). § 58. The Empire under Constantine and His Sons Constantine became sole Emperor of the West, 312, and by the defeat of Licinius, July 23, 324, sole ruler of the entire Roman Empire. On his death, May 22, 337, his three sons divided between them the imperial dignity: Constantine II (337-340), taking Gaul, Spain, and Britain; Constans (337-350), Italy, Africa, and Illyria, and in 340 receiving the share of Constantine II; Constantius (337-361), taking the East, including Egypt. Of these three the ablest was Constantius who, after the renewed Persian war (337-350), became, on the death of Constans, sole Emperor. Although the imperial authority was divided and the ecclesiastical policy of each Emperor followed the religious condition and theological complexion of his respective portion of the Empire, the social conditions were everywhere much the same. There were under Constantine and also under his sons the continuation of that centralization which had already been carried far by Diocletian, the same court ceremonial and all that went with it, and the development of the bureaucratic system of administration. The economic conditions steadily declined as the imperial system became constantly more burdensome (_v. supra_, § 55), and the changes in the distribution of wealth and the administration of landed property affected disastrously large sections of the populace. A characteristic feature of Roman society, which affected the position of the Church not a little, was the tendency to regard callings and trades as hereditary, and by the fourth century this was enforced by law. The aim of this legislation was to provide workmen to care for the great public undertakings for the support of the populace of the cities and for the maintenance of the public business. This policy affected both the humble artisan and the citizen of curial rank. The former, although given various privileges, was crushed down by being obliged to continue in what was often an unprofitable occupation; the latter was made responsible for the taxes and various public burdens which custom, gradually becoming law, laid upon him. Constant attempt was made by great numbers to escape these burdens and disabilities by recourse to other occupations, and especially to the Christian ministry with its immunities (see § 59, _c_). Constant legislation endeavored to prevent this and restore men to their hereditary places. The following extracts from the Theodosian Code are enactments of Constantine, and are intended to illustrate the condition, under that Emperor, of the law as to hereditary occupations and guilds, and the position of the curiales, so as to explain the law as to admission to the priesthood. (_a_) _Codex Theodosianus_, XIII, 5, 1; A. D. 314.