[3028] Perhaps earlier and perhaps later. It is generally placed in 317 (cf. Clinton, p. 370).
§6. Fourth Five Years.
If the third period was relatively quiet the fourth was absolutely stirring. There had undoubtedly been more or less fighting along the Danube frontier during the preceding years, but early in this period there was a most important campaign against the Sarmatians, in which they were defeated and their king taken prisoner. [3029] In honor of this victory coins were struck (Eckhel, Doct. Num. Vet. 8 (1827) 87). But this was only skirmishing; afterwards came the tug of war. Nine years of peace proved the utmost limit of mutual patience, and Constantine and Licinius came to words, and from words to blows. For a long time Constantine had been vexed at the persecution of the Christians by Licinius (cf. Euseb. H. E. 10. 8, 9), persecutions waged perhaps with the express purpose of aggravating him. [3030] Licinius, on the other hand, naturally chagrined over the previous loss of territory, knowing of Constantine's indignation over his persecutions, and perhaps suspecting him of further designs, was naturally suspicious when Constantine passed within his boundaries in pursuing the Sarmatians (Anon. Vales. p. 474). Mutual recriminations and aggravations followed. Licinius would not let the Sarmatian coins pass current and had them melted down (Anon. Contin. Dio. Cass., in Müller, Fragm. Hist. Gr. 4 [1868] 199). Altogether they soon came to blows. The steps were short, sharp, decisive. Constantine defeated Licinius by land (July 3, 323), and through Crispus, by sea (Soz. 1. 7; Anon. Vales. p. 474-5; Zos. 2. 22-3). After the defeat at Adrianople, Licinius retreated to Byzantium (Zos. 2. 23-5; Vict. Epit. p. 50), and then to Chalcedon (Anon. Vales. p. 475, Zos. 2. 25-6). Two months after the first victory (Sept. 18) a final and decisive battle was fought at Chrysopolis [3031] (Anon. Vales. p. 475; Socr. 1. 4). Licinius surrendered on condition that his life should be spared (Zos. 2. 28), or rather Constantia secured from her brother the promise that his life should be spared (Anon. Vales. p. 475; Vict. Epit. p. 50; Pseudo-Leo, p. 85, &c.). He retired to Nicomedia, residing at Thessalonica (Soz. 1. 7; Pseudo-Leo, &c.), but was put to death the following year. [3032] Constantine was now sole emperor. His first act (Soz. 1. 8) was to issue a proclamation in favor of the Christians (Soz. l.c.; V. C. 2. 24- , and 48- ). This was followed by many other acts in their favor,--building of churches, &c. (cf. Euseb. V. C., and notes). From this time on he was much identified with Christian affairs, and the main events are given in extenso by Eusebius (see various notes). In 325 (June 19-Aug. 25) the Council of Nicæa was held (cf. Euseb. V. C. 3. 6, and notes), and Constantine took an active part in its proceedings. The same year his Vicennalia were celebrated at Nicomedia (Euseb. V. C. 1. 1; Hieron.; Cassiod.) and the following year at Rome also (Hieron., Cassiod., Prosper, Idat.), Constantine being present at both celebrations, [3033] being thus at Rome in July, and passing during the year as far as Arles, apparently spending some time at Milan (cf. the various laws in Clinton, v. 2, p. 92).
[3029] Zos. 2. 21. An exhaustive discussion of this is that by Bessell, Gothen, in Ersch u. Gruber, Encykl. I. 75 (Leipz. 1862), 132-33. The same article (p. 133-35) discusses various relations of Goths and Sarmatians with Constantine.
[3030] According to Sozomen, Licinius withdrew his favor from Christians and persecuted them, because "He was deeply incensed against the Christians on account of his disagreement with Constantine, and thought to wound him by their sufferings; and, besides, he suspected that they earnestly desired that Constantine should enjoy the sovereign rule" (1. 7). In this view of the case, it is easy to see how and why affairs marched as they did. Eusebius (H. E. 10. 9) makes this, like the war against Maxentius, a real crusade in behalf of the persecuted Christians.
[3031] According to Zos. 2. 27, the final siege and surrender was at Nicomedia.
[3032] Compare note on Bk. II. ch. 18.
[3033] For his presence at Rome at this time, compare authorities above, and also law dated July, 326, given in Clinton (p. 380).
§7. Fifth Five Years.
The beginning of this period was the beginning of the series of acts which have taken most from the reputation of Constantine. Sometime in 326, perhaps while at Rome, he ordered the death of his son Crispus. [3034] The same year (Hieron. Chron.) the Cæsar Licinius, his sister's son, was put to death (Eutrop. 10. 6; Hieron.; Prosper.), and shortly after [3035] his wife Fausta died or was put to death. [3036] But apart from this shadow, the period was hardly less brilliant, in its way, than preceding ones. It was a time of gigantic and, as some said, extravagant internal improvements. Among various enterprises was the refounding, in 327, of Drepanum, his mother's city, as Helenopolis (Hieron. An. 2343; Chron. Pasch. p. 283(?); Socr. H. E. 1. 18; Soz. 2. 2; Theoph. p. 41), and greatest of all, the transformation of the insignificant Byzantium into the magnificent Constantinople, [3037] which was dedicated in 330 (Idatius; Chron. Pasch. p. 285; Hesych. §42; Hieron.; cf. Clinton). [3038] It was probably during this period, too, that the work of improvement in Jerusalem was undertaken, and Helena made her famous visit thither (Euseb. V. C. 3. 42; Soz. 21; Socr. 1. 17; Ephraem. p. 24: Theoph. 37-8, &c.).
[3034] Crispus was alive and in power March 1, 326, as appears from coins (cf. Eckhel, 8, p. 101-2). Whether he was put to death before the Vicennalia does not appear, but that he was is not probable. For death of Crispus and its date, compare Zos. 2. 29; Vict. Cæs.; Soz. 1. 5; Vict. Epit. p. 50; Chron. Pasch.; Eutrop. 10. 6, &c., and discussion under Character.
[3035] The same year according to Greg. Tur. (1. 34). Cf. Eutrop. and Sidon. 327, and even 328, is the date given by some (cf. Clinton, v. 1, p. 382, and Wordsworth).
[3036] Disputed, but generally allowed. On this series of deaths, compare the somewhat opposite views of Görres and Seeck in the articles mentioned under Literature for latest views.
[3037] The date of the beginning of the work is curiously uncertain. Socrates (1. 6) puts it directly after the Council of Nicæa, and Philostorgius in 334, while there is almost equal variety among the modern historians. Burckhardt says Nov. 4, 326; De Broglie, 328 or 329; Wordsworth as early as 325. It is possible that the strangeness which he felt in visiting Rome in 326, and the hostility with which he was met there (Zos. 2. 29, 30), may have been a moving cause in the foundation of this "New Rome," and that it was begun soon after his visit there. He first began to build his capital near the site of Ilium (Soz. 2. 3; Zos. 2. 30), but "led by the hand of God" (Soz.), he changed his plan to that city whose site he so much admired (Soz.).
[3038] For accounts of the founding of Constantinople, see Soz. 2. 3; Philostorgius, 2. 9; Malalas, 13. 5; Glycas, p. 462-64; Cedrenus, p. 495-98; Theoph. 41-42. Compare Zosimus, 2. 30; Anon. Vales. p. 475-76; Socrates, 1. 16; Orosius, c. 28; Praxagoras, Zononas, Codinus, Nicephoras Callistus, &c.
§8. Sixth Five Years.
The main event of the last full five-year period of this reign was the Gothic war (Hieron. An. 2347; Idat.; Oros. c. 28; Anon. Vales. p. 476; Eutrop. 10. 7; Vict. Cæs. p. 352; cf. Soz. 1. 26), undertaken in behalf of the Sarmatians (Anon. Vales. l.c.), carried on by Constantine II., and brought to an end April 20, 332 (cf. Clinton). The following year (333) Constans was made consul (Idat.; Hieron.; Prosper has 332; cf. Zos. 2. 35; Vict. Cæs. p. 161, &c.), and in 334 the remarkable (Anon. Vales.) incorporation of 300,000 Sarmatians into the empire (Anon. Vales. p. 476; Idat.; Hieron.; cf. Ammian. 17. 12, 18; 17. 13; 19. 12; V. C. 4. 6). This same year Calocærus revolted in Crete and was defeated (Anon. Vales. p. 476; Vict. Cæs. p. 161; Oros. c. 28; Hieron.). The following year (335) Constantine celebrated his tricennalia, and Dalmatius was made Cæsar (Idat.; Hieron. An. 340; Vict. Cæs. p. 161; Anon. Vales. p. 476; Chron. Pasch. p. 532; Vict. Epit. p. 51; Oros. c. 28), making now four Cæsars and a nondescript (cf. Anon. Vales. p. 476),--Constantine II, Constantius, Constans, Dalmatius, and Hannibalianus, among whom the world was now partitioned (Anon. Vales. p. 476; Zos. 2. 39; Vict. Epit. p. 52).
§9. Last Years.
Later in this year, Constantine is known to have been at Jerusalem, where he dedicated a church (V. C. 4. 40; Chron. Pasch., but wrong year). It was also the year of the Synods of Tyre (Athanas. c. Ar. 1. p. 788; V. C. 4. 41; Theod. 1. 28). The same year, or early in the following one, Eusebius pronounced his tricennial oration (see Special Prolegomena). In 337 the Great Emperor died at Ancyrona, near Nicomedia, just as he was preparing for an expedition against the Persians, and was buried in the Church of the Apostles, at Constantinople (cf. notes on Eusebius' Life of Constantine). [3039]
[3039] The events and dates of these later periods have to do mainly with theological matters,--the "religious" activity of Constantine, to which Eusebius devotes his attention so fully,--and are treated in the V. C.