Below are some of the important events that happened between 380 and 389.



380
 January or February – Emperor Theodosius I is baptized.
 February 27 – Edict of Thessalonica: Theodosius I, with co-emperors Gratian and Valentinian II, say that all Roman citizens should become Christians.
 The Rock of Cashel is built in Ireland.
 The Visigothic chieftain Fritigern dies. His rival Athanaric becomes king of the entire Gothic nation.

Births 
 Aelia Eudoxia, empress and wife of Arcadius 
 Alexius, Eastern saint
 Eucherius, bishop of Lyon 
 Hephaistio of Thebes, Egyptian astrologer

Deaths 
 Peter II, Patriarch of Alexandria
 Samudragupta, ruler of the Gupta Empire
 Wang Fahui, empress of the Jin Dynasty

381
 Roman Emperor Gratian moves the capital to Mediolanum (modern Milan).
 The Visigothic chieftain Athanaric becomes the first foreign king to visit the East Roman capital of Constantinople.
 Flavian succeeds Meletius as Patriarch of Antioch.
 Timothy succeeds Peter as Patriarch of Alexandria.

Births 
 Helian Bobo, emperor of the Chinese Xiongnu state Xia

Deaths 
 Athanaric, king of the Visigoths

382
 Roman Emperor Gratian removes the Altar of Victory from the Senate.

Births 
 Jin Andi, emperor of the Eastern Jin Dynasty 
 Sima Yuanxian, regent during the Jin Dynasty

383
 Niall of the Nine Hostages becomes the first High King of Ireland.
 Hadrian's Wall is overrun by the Picts.
 January 19 – Arcadius becomes Roman Emperor.
 Roman troops in Britain call Magnus Maximus Emperor. He crosses over to the continent and makes Trier his capital.
 King Ardashir II dies after a 4-year reign. He is succeeded by his son Shapur III.

Births 
 Lupus of Troyes, French bishop and saint

Deaths
 August 25 – Gratian, Roman Emperor 
 December 10 – Pope Damasus I
 Frumentius, the "Apostle to Ethiopia"

384
 Magnus Maximus returns to Britain to help them with the Barbarians raids.
 An edict of Theodosius I closes pagan temples in the Nile Valley.
 King Shapur III signs a treaty with Theodosius I. Armenia is divided in two kingdoms.
 December 17 – Pope Siricius succeeds Damasus I as the 38th pope.

Births 
 September 9 – Honorius, Roman Emperor
 Chu Lingyuan, last empress of the Jin Dynasty
 Maria, empress and daughter of Stilicho 
 Sengzhao, Chinese Buddhist 
 Wang Shen'ai, empress of the Jin Dynasty

Deaths 
 December 11 – Pope Damasus I
 Chu Suanzi, empress of the Jin Dynasty 
 Geungusu, king of Baekje 
 Murong Hong, founder of the Xianbei state Western Yan

385
 Jinsa of Baekje becomes the 16th king of the ancient Korean kingdom of Baekje.
 Copper extraction and casting begins in the mines of Kansanshi in southernmost Africa.
 Ammianus Marcellinus begins writing a history covering the years 96 to 378.
 The Serapeum in Alexandria is destroyed.
 Aurelios Zopyros becomes the last reported athlete at the Ancient Olympic Games.

Births 
 Avitus, Western Roman Emperor 
 Murong Chao, emperor of the Xianbei state Southern Yan 
 Murong Xi, emperor of the Xianbei state Later Yan 
 Saint Patrick, missionary in Ireland 
 Paulus Orosius, historian and theologian
 Xie Lingyun, Chinese poet of the Southern and Northern Dynasties

Deaths 
 Aelia Flaccilla, Roman empress and wife of Theodosius I
 Chimnyu, king of Baekje (Korea)
 Dao An, Buddhist monk of the Jin Dynasty
 Fú Jiān, emperor of the Chinese Di state Former Qin
 Murong Wei, emperor of the Xianbei state Former Yan

386
 The Greuthungi cross the Danube to raid the Roman garrisons.
 Magnus Maximus invades Italy.
 The Northern Wei Dynasty begins in China.

Births 
 Jin Gongdi, last emperor of the Jin Dynasty 
 Nestorius, founder of Nestorianism

Deaths 
 Cyril of Jerusalem, theologian and saint
 Duan Sui, ruler of the Western Yan
 Fu Pi, emperor of the Former Qin 
 Jin Feidi, emperor of the Jin Dynasty 
 Murong Chong, emperor of the Western Yan 
 Murong Yao, emperor of the Western Yan
 Murong Yi, ruler of the Western Yan
 Murong Zhong, emperor of the Western Yan

387
 Spring – Emperor Theodosius I increases the taxes in Antioch. The peasants start a riot.
 Magnus Maximus invades Italy. Emperor Valentinian II, age 16, is forced out of Rome.
 Winter – Emperor Theodosius I takes Valentinian II into protection.

Deaths 
 Aelia Flaccilla, wife of Theodosius I
 Alatheus, chieftain of the Ostrogoths
 Saint Monica, mother of Augustine of Hippo

388
 Battle of the Save: Emperor Theodosius I defeats Magnus Maximus near Emona.
 Valentinian II is restored as Roman Emperor.
 August 28 – Magnus Maximus surrenders at Aquileia and is executed. 
 Bahram IV becomes the twelfth Sassanid king of Persia.
 Emperor Chandragupta II, ruler of the Gupta Empire, begins a war against the Shaka Dynasty in West India.

Births 
 Yao Hong, emperor of the Chinese Qiang state Later Qin

Deaths 
 Flavius Victor, son of Magnus Maximus and co-emperor 
 Qifu Guoren, ruler of the Xianbei state Western Qin
 Shapur III, king of the Sassanid Empire

389
 All pagan buildings in Alexandria are destroyed by fire.  This includes the library.

Births 
 Geiseric, king of the Vandals and Alans

Deaths 
 Mao, Chinese empress and wife of Fu Deng 
 January 25 – Gregory Nazianzus, theologian 

380s