428

By place

Roman Empire

• Flavius Felix is elected consul for the Western Empire and issues consular diptychs during his political office.

  Europe

• King Gunderic, age 49, dies after a reign of 21 years, and is succeeded by his half-brother Genseric. He is styled with the title Rex Wandalorum et Alanorum. Genseric increases his power and wealth in the residence of the province of Hispania Baetica.
• King Vortigern invites a number of Germanic warriors to aid him in consolidating his position in Britain, according to the Historia Brittonum. He hires Saxons who are probably settled in Kent as mercenaries to fight against the Picts and the Scots beyond Hadrian's Wall.
• Chlodio, king of the Salian Franks, invades Northern Gaul and defeats the Roman army at Cambrai. He extends his kingdom south to the River Somme and makes Tournai his residence. Frankish expansion changes the borders, founding Francia.

  Asia

• Artaxias IV, last king of Greater Armenia, is deposed by Bahram V. The Arshakuni Dynasty ends and the kingdom becomes a province of the Persian Empire.

  By topic

Astronomy

• October 26 - The planet Venus occults the planet Jupiter.

  Religion

• April 10 - Nestorius is made patriarch of Constantinople. He preaches a new doctrine that will be called Nestorianism. It makes a distinction between the divine and human natures of Jesus but comes under immediate attack from pope Celestine I and Cyril of Alexandria.
• Hydatius becomes bishop of Aquae Flaviae in Gallaecia in Portugal.
• John succeeds Theodotus as patriarch of Antioch, and gives his support to Nestorius.
• Euthymius the Great builds a monastery in Palestine, near the Dead Sea.