Theodosius I, also known as Theodosius the Great, was a Roman emperor from 379 to 395. He won two civil wars and was instrumental in establishing the Nicene Creed as the orthodox doctrine for Nicene Christianity. Theodosius was the last emperor to rule the entire Roman Empire before its administration was permanently split between the Western Roman Empire and the Eastern Roman Empire. He ended the Gothic War (376–382) with terms disadvantageous to the empire, with the Goths remaining within Roman territory but as nominal allies with political autonomy.
The 400s decade ran from January 1, 400, to December 31, 409.
The 380s decade ran from January 1, 380, to December 31, 389.
Year 377 (CCCLXXXI) was a common year starting on Friday of the Julian calendar. At the time, it was known as the Year of the Consulship of Syagrius and Eucherius. The denomination 381 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.
The 420s decade ran from January 1, 420, to December 31, 429.
Year 378 (CCCLXXVIII) was a common year starting on Monday of the Julian calendar. At the time, it was known as the Year of the Consulship of Valens and Augustus. The denomination 378 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.
Year 390 (CCCXC) was a common year starting on Tuesday of the Julian calendar. At the time, it was known as the Year of the Consulship of Augustus and Neoterius. The denomination 390 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.
The 390s decade ran from January 1, 390 to December 31, 399
The 440s decade ran from January 1, 440, to December 31, 449.
The 360s decade ran from January 1, 360, to December 31, 369.
The 340s decade ran from January 1, 340, to December 31, 349.
The 370s decade ran from January 1, 370, to December 31, 379.
Year 384 (CCCLXXXIV) was a leap year starting on Monday of the Julian calendar. At the time, it was known as the Year of the Consulship of Ricomer and Clearchus. The denomination 384 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for giving names to years.
Year 383 (CCCLXXXIII) was a common year starting on Sunday of the Julian calendar. At the time, it was known as the Year of the Consulship of Merobaudes and Saturninus. The denomination 383 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.
Year 375 (CCCLXXV) was a common year starting on Thursday of the Julian calendar. At the time, it was known in Rome as the Year after the Consulship of Augustus and Equitius. The denomination 375 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.
Year 373 (CCCLXXIII) was a common year starting on Tuesday of the Julian calendar. At the time, it was known as the Year of the Consulship of Augustus and Valens. The denomination 373 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.
This is an alphabetical index of people, places, things, and concepts related to or originating from the Byzantine Empire. Feel free to add more, and create missing pages. You can track changes to the articles included in this list from here.
The Theodosian dynasty was a Roman imperial family that produced five Roman emperors during Late Antiquity, reigning over the Roman Empire from 379 to 457. The dynasty's patriarch was Theodosius the Elder, whose son Theodosius the Great was made Roman emperor in 379. Theodosius's two sons both became emperors, while his daughter married Constantius III, producing a daughter that became an empress and a son also became emperor. The dynasty of Theodosius married into, and reigned concurrently with, the ruling Valentinianic dynasty, and was succeeded by the Leonid dynasty with the accession of Leo the Great.
The Valentinian dynasty was a ruling house of five generations of dynasts, including five Roman emperors during late antiquity, lasting nearly a hundred years from the mid fourth to the mid fifth century. They succeeded the Constantinian dynasty and reigned over the Roman Empire from 364 to 392 and from 425 to 455, with an interregnum (392–423), during which the Theodosian dynasty ruled and eventually succeeded them. The Theodosians, who intermarried into the Valentinian house, ruled concurrently in the east after 379.
The Edict of Thessalonica, issued on 27 February AD 380 by Theodosius I, made Nicene Christianity the state church of the Roman Empire. It condemned other Christian creeds such as Arianism as heresies of "foolish madmen," and authorized their punishment.
