400 e.v.

Haagenti is created and spends the next 600 years as an abused Familiar. 
== Africa ==
Hypatia, Greek philosopher, distinguishes herself as one of the first women scientists, and becoming head of the Neo-Platonist school at Alexandria.
== Asia ==
Anthemius, praetorian prefect of the East, is sent on an embassy to the Persian capital, Ctesiphon, to congratulate King Yazdegerd I on his accession the year before.
A riot breaks out in Constantinople; the Great Palace is burned to the ground. Gainas, a Gothic leader, attempts to evacuate his soldiers out of the city, but 7,000 armed Goths are trapped and killed by order of Arcadius. After the massacre, Gainas tries to escape across the Hellespont, but his rag-tag ad hoc fleet is destroyed by Fravitta, a Gothic chieftain in imperial service. Bishops from Gaza (Palestine) arrive at Constantinople to ask Arcadius that he close the pagan temple of Marnas.
Richū, the eldest son of Nintoku, becomes the 17th Emperor of Japan.
The Yoga Sutras of Patanjali are composed.
Duan, Chinese empress and wife of Murong Bao, dies. Li Lingrong, empress and mother of Jin Xiaowudi, dies. Lü Guang, emperor of the Di state Later Liang, dies (he was born in 337 e.v.) Lü Shao, "Heavenly Prince" (Tian Wang) of Later Liang, dies.
== Europe ==
The Paeonians (Illyricum) lose their identity.
Resurrection and "Two Marys with Angel near the Empty Tomb", panel of a diptych is made. The Vergilius Vaticanus, an illuminated manuscript containing fragments of Virgil's Aeneid and Georgics, is made in Rome. Caelius Aurelianus, Roman physician, is practicing his work "De morbis acutis et chronicis" (Concerning Acute and Chronic Illness), a guide to acute and chronic diseases.
The mausoleum of Galerius in Salonica (Greece) is converted into a church. Oribasius, Greek medical writer and physician, dies.
Aspar, Alan patrician and general (magister militum), is born.
Hydatius, bishop of Aquae Flaviae (modern Chaves, Portugal), is born.
Salvian, Christian writer, is born.
Sozomen, Christian Church historian, is born.
Castor of Karden, Christian priest and hermit, dies.
=== January 9 ===
Emperor Arcadius gives his wife Aelia Eudoxia the official title of Augusta. She is able to wear the purple paludamentum and is depicted in Roman currency.
=== Winter ===
Gainas leads the remaining Goths back to their homeland across the Danube. They meet the Huns and are defeated; the Hunnic chieftain Uldin sends the head of Gainas to Constantinople, where Arcadius receives it as a diplomatic gift.
Category:Year
Category:1st millennium era vulgaris
Category:4th century era vulgaris
Category:390s era vulgaris