400
Calendar year

Year 400 (CD) was a leap year starting on Sunday of the Julian calendar. In the Roman Empire, it was known as the Year of the Consulship of Stilicho and Aurelianus (or, less frequently, year 1153 Ab urbe condita). The denomination 400 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. It was the 400th year of the Common Era (CE) and Anno Domini (AD) designations, the 400th year of the 1st millennium, the 100th and last year of the 4th century, and the 1st year of the 400s decade.
01Events
By place
Roman Empire
- 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.
- 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.
- 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.
Europe
Asia
- Richū, the eldest son of Nintoku, becomes the 17th Emperor of Japan.
By topic
Art
- Resurrection and "Two Marys with Angel near the Empty Tomb", panel of a diptych, found in Rome, is made. It is now kept at Castello Sforzesco, Milan (approximate date).
Literature
- The Vergilius Vaticanus, an illuminated manuscript containing fragments of Virgil's Aeneid and Georgics, is made in Rome.
- The Yoga Sutras of Patanjali are composed.
Medicine
- Caelius Aurelianus, Roman physician, is practising his work "De morbis acutis et chronicis" (Concerning Acute and Chronic Illness), a guide to acute and chronic diseases.
Physics
- Hypatia, Greek philosopher, distinguishes herself as one of the first female scientists and becomes head of the Neo-Platonist school at Alexandria.
Religion
02Births
- Aspar, Alan patrician and general (magister militum) (approximate date)
- Bahram V, Sasanian King of Kings (shahanshah)
- Hassan Yuha'min, king of the Himyarite Kingdom
- Hydatius, bishop of Aquae Flaviae (modern Chaves, Portugal) (approximate date)
- Pope Leo I, Bishop of Rome
- Qusayy ibn Kilab, Ishmaelite descendant of Abraham
- Salvian, Christian writer (approximate date)
- Sozomen, Christian Church historian
03Deaths
- Castor of Karden, Christian priest and hermit
- Duan, Chinese empress and wife of Murong Bao
- Gainas, Gothic chieftain and general (magister militum)
- Li Lingrong, empress and mother of Jin Xiaowudi
- Lü Guang, emperor of the Di state Later Liang (b. 337)
- Lü Shao, "Heavenly Prince" (Tian Wang) of Later Liang
- Oribasius, Greek medical writer and physician
Sources and credits
This article is adapted from the Wikipedia article “400”, written by its contributors and licensed under CC BY-SA 4.0. Fathomly has changed the layout, removed citation markers, navigation and maintenance notices, and adjusted punctuation. This adapted version is shared under the same license. For references, see the original article.
Images, from Wikimedia Commons:
- East-Hem 400ad.jpg by Thomas Lessman (Contact!), CC BY-SA 3.0
- Europa400AD.JPG by Unknown author, CC BY-SA 3.0
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