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 376 (CCCLXXVI) was a leap year starting on Friday of the Julian calendar. At the time, it was known as the Year of the Consulship of Valens and Augustus. The denomination 376 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 392 (CCCXCII) was a leap year starting on Thursday of the Julian calendar. At the time, it was known as the Year of the Consulship of Augustus and Rufinus. The denomination 392 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 410s decade ran from January 1, 410, to December 31, 419.
The 330s decade ran from January 1, 330, to December 31, 339.
The 350s decade ran from January 1, 350, to December 31, 359.
The 370s decade ran from January 1, 370, to December 31, 379.
Year 388 (CCCLXXXVIII) was a leap year starting on Saturday of the Julian calendar. At the time, it was known as the Year of the Consulship of Augustus without colleague. The denomination 388 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 386 (CCCLXXXVI) was a common year starting on Thursday of the Julian calendar. At the time, it was known as the Year of the Consulship of Honorius and Euodius. The denomination 386 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.
Valentinian II was a Roman emperor in the western part of the Roman empire between AD 375 and 392. He was at first junior co-ruler of his half-brother, then was sidelined by a usurper, and finally became sole ruler after 388, albeit with limited de facto powers.
Eugenius was a Western Roman emperor from 392 to 394, unrecognized by the Eastern Roman emperor Theodosius I. While Christian himself, Eugenius capitalized on the discontent in the West caused by Theodosius' religious policies targeting pagans. He renovated the pagan Temple of Venus and Roma and restored the Altar of Victory after continued petitions from the Roman Senate. Eugenius replaced Theodosius' administrators with men loyal to him. This included pagans, reviving the pagan cause. His army fought the army of Theodosius at the Battle of the Frigidus, where he was captured and executed.
Qin, known as the Former Qin and Fu Qin (苻秦) in historiography, was a dynastic state of China ruled by the Fu (Pu) clan of the Di peoples during the Sixteen Kingdoms period. Founded in the wake of the Later Zhao dynasty's collapse in 351, it completed the unification of northern China in 376 during the reign of Fu Jiān, being the only state of the Sixteen Kingdoms to achieve so. Its capital was Chang'an up to Fu Jiān's death in 385. The prefix "Former" is used to distinguish it from the Later Qin and Western Qin dynasties that were founded later.
Yan, known in historiography as the Western Yan was a dynastic state of China ruled by the Xianbei ethnicity. The dynasty existed during the era of Sixteen Kingdoms, but it is not counted among the 16. It was founded by Murong Hong in 384 in the aftermath of the Former Qin's defeat by the Eastern Jin in the Battle of Fei River, with the stated intent of permitting the Xianbei, whom the Former Qin's emperor Fu Jiān had relocated to Former Qin's capital region after destroying the Former Yan in 370. It initially also was intended to rescue the last Former Yan emperor Murong Wei, until he was executed by Fu Jiān in 385. It was a state that was characterized by extreme political instability and internal fighting, as all seven of its rulers died of unnatural causes. After eviscerating the Former Qin, the people of the state abandoned the Guanzhong region and headed east back toward their homeland, but eventually settled down in modern Shanxi. It was destroyed in 394 as Later Yan's emperor Murong Chui wanted to reunite the people formerly of Yan and conquered it.
The Battle of the Frigidus, also called the Battle of the Frigid River, was fought on 5 and 6 September 394 between the armies of the Roman emperor Theodosius the Great and the rebel augustus Eugenius, in the eastern border of Roman Italy. Theodosius won the battle and defeated the usurpation of Eugenius and Arbogast, restoring unity to the Roman Empire. The battlefield, in the Claustra Alpium Iuliarum near the Julian Alps through which Theodosius's army had passed, was probably in the Vipava Valley – with the Frigidus River being the modern Vipava – or possibly in the valley of the Isonzo.
Arbogast or Arbogastes was a Roman army officer of Frankish origin. He won distinction in the service of the emperor Gratian, and was subsequently entrusted by Theodosius I with the guardianship of the underage Valentinian II. The death of Valentinian in mysterious circumstances, and the rise of the controversial Eugenius, led to a civil war in which Arbogast perished.
Fu Chong was the last emperor of the Di-led Former Qin dynasty of China. He assumed the throne in 394 after the death of his father, Fu Deng. He later died in battle against the Western Qin dynasty, thus marking the collapse of the Former Qin.
Virius Nicomachus Flavianus was a grammarian, a historian and a politician of the Roman Empire.
