But the Arians soon split into bitter factions and began to destroy themselves. Under Emperor Julian they lost imperial favour and saw the Nicene party tolerated. The orthodox faction was thus able to gradually re-win power in the West and South. Theodosius the Great (379-395) externally completed the Nicene conquest of the whole Empire through an imperial edict (380) and by calling the second general Council of Constantinople (381), which ratified the Nicene Creed in a revised form and passed seven additional canons.[145:2] But Arianism lingered long within the Empire, especially among the Teutons, who were slow to accept the Roman faith--the Vandals in 530, the Burgundians in 534, the Suevi in 560, the Goths in 587, and the Longobards in 600.[145:3] It also reappeared again and again in the later heresies on down to the present day. SOURCES A.--PRIMARY: I.--CHURCH FATHERS: 1.--Eusebius, _Life of Constantine_. _Nic. and Post-Nic. Fathers._ 2d ser., i., bk. 2, 3. _Church History._ _Ib._, i. 2.--Athanasius, _Works_. 2d ser., _ib._, iv. _Fath. of the Holy Cath. Ch._, viii., xiii., xix. Bright, W., _Orations_. Oxf., 1873. 3.--Socrates, _Ecclesiastical History_. _Nic. and Post-Nic. Fathers._ 2d ser., ii., bk. 1, ch. 8 _ff._ 4.--Sozomen, _Ecclesiastical History_. 2d ser., _ib._, ii., bk. 1, ch. 17 _ff._ 5.--Theodoret, _Ecclesiastical History_. 2d ser., _ib._, iii., bk. 1, ch. 1-13. 6.--Philostorgius, _Epitome of Ecclesiastical History_. Bohn, _Eccl. Lib._, ii., 429-528. II.--COLLECTIONS: 1.--Percival, H. R., _The Seven Ecumenical Councils_. In _Nic. and Post-Nic. Fathers_, 2d ser., xiv. N. Y., 1900. 2.--Pusey, E., _The Councils of the Church_ (to 381). 3.--Fulton, J., _Index Canonum_. N. Y., 1892. 4.--Lambert, W., _Canons of the First Four General Councils_. Lond., 1868. 5.--Hammond, W. A., _The Six Œcumenical Councils_. Oxf., 1843. 6.--Bright, W., _Notes on the Canons of the First Four General Councils_. N. Y., 1892. 7.--Mitchell, E. K., _Canons of the First Four General Councils_. Univ. of Pa., _Transl. and Repr._, iv. 8.--Chrystal, J., _Authoritative Christianity_. Jersey City, 1891. Vol. i. 9.--Schaff, P., _The Creeds of the Greek and Latin Churches_. Lond., 1877, ii., 28, 29, 57-62, 66. 10.--Lumby, J. R., _The History of the Creeds_. Lond., 1880. Vol. ii. 11.--Howard, G. B., _Canons of the Primitive Church_. Lond., 1896. B.--SECONDARY: I.--SPECIAL: 1.--Boyle, I., _Historical View of the Council of Nicæa_. N. Y., 1856. 2.--Bright, W., _Waymarks of Church History_. Lond., 1894, 56 _ff._ 3.--Bull, G., _Defence of the Nicene Faith_. 1685. Transl. in _Lib. of Anglo-Cath. Theol._ Lond., 1851.