413

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Year 413 (CDXIII) was a common year starting on Wednesday of the Julian calendar. At the time, it was known as the Year of the Consulship of Heraclianus and Lucius (or, less frequently, year 1166 Ab urbe condita). The denomination 413 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

Heraclianus, Roman usurper, lands in Italy with a large army to fight Emperor Honorius. He is defeated in Umbria and flees to Carthage, where he is put to death by envoys of Honorius.
May 8 – Honorius signs an edict providing tax relief for the Italian provinces Tuscia, Campania, Picenum, Samnium, Apulia, Lucania and Calabria, which were plundered by the Visigoths.
The Visigoths, led by King Ataulf, conquer the towns of Toulouse and Bordeaux by force of arms. After a successful siege of Valence, he captures the usurper Jovinus and his brother Sebastianus. In Narbonne they are executed and their heads are sent to Honorius' court at Ravenna.

Kumaragupta I succeeds his father Chandragupta II as emperor of the Gupta Empire (India).
Jangsu becomes ruler of the Korean kingdom of Goguryeo.{{cite web |title=List of Rulers of Korea |url=https://www.metmuseum.org/toah/hd/koru/hd_koru.htm |website=www.metmuseum.org |access-date=19 April 2019}}

Augustine of Hippo, age 59, begins to write his spiritual book De Civitate Dei (City of God), as a reply to the charge that Christianity was responsible for the decline of the Roman Empire.