AD 383

Solidus of Emperor Gratian (359–383)

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 (or, less frequently, year 1136 Ab urbe condita). 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.

Events

Niall of the Nine Hostages becomes the first High King of Ireland.<ref>Template:Cite book</ref>
Magnus Maximus withdraws Roman troops from the region of Wales, marking the effective end of Roman rule in Wales.<ref>Template:Cite book</ref>

January 19 – Arcadius is elevated to Emperor.<ref name="isbn1-57958-316-4">Template:Cite book</ref>
Roman troops in Britannia proclaim Magnus Maximus as their Emperor. He crosses over to the continent and makes Trier his capital.<ref name="isbn0-85991-625-1">Template:Cite book</ref> Gaul, the Italian provinces and Hispania proclaim loyalty to him.
August 25 – Emperor Gratian, age 24, is assassinated at Lugdunum (modern-day Lyon), leaving a young widow Laeta. Pannonia and Africa maintain their allegiance to co-emperor Valentinian II, now 12, whose mother, Justina, rules in his name.
Emperor Theodosius I cedes Dacia and Macedonia to Valentinian II. They recognize Magnus Maximus as Augustus.
Theodosius I sends Flavius Stilicho as an envoy to the Persian court of King Shapur III at Ctesiphon, to negotiate a peace settlement relating to the partition of Armenia.

Battle of Fei River (Feishui):<ref name="isbn076560504x">Template:Cite book</ref> Former Qin forces are defeated by the numerically inferior Eastern Jin army in Anhui, preserving the Jin state in the south and precipitating the destruction of Former Qin in the north.
King Ardashir II dies after a 4-year reign. He is succeeded by his son Shapur III.<ref name="isbn0-415-32678-8">Template:Cite book</ref>

First Council of Constantinople (some authorities date this council to 381): Theodosius I calls a general council to affirm and extend the Nicene Creed, and denounce Arianism and Apollinarism. Most trinitarian Christian churches consider this an Ecumenical council.
By the order of Theodosius I, Eunomius of Cyzicus is banished to Moesia.

May 30 – Isaac of Dalmatia, Byzantine Orthodox priest and saint
August 25 – Gratian, Roman Emperor (assassinated) (b. 359)<ref name="Rose">Template:Cite book</ref>
October 21 – Ursula, Roman Christian martyr and saint
Ardashir II, Sassanid king (shah) ("King of Kings")
Flavia Maxima Constantia, daughter of Constantius II
Frumentius, Phoenician missionary and bishop<ref name="isbn0-313-32273-2">Template:Cite book</ref>
Fu Rong, Chinese general and prime minister
Ulfilas (or Wulfila), Gothic missionary and bishop<ref name="isbn0-8006-6215-6">Template:Cite book</ref>