428

428 in other calendars
Gregorian calendar	428; CDXXVIII
Ab urbe condita	1181
Assyrian calendar	5178
Balinese saka calendar	349–350
Bengali calendar	−165
Berber calendar	1378
Buddhist calendar	972
Burmese calendar	−210
Byzantine calendar	5936–5937
Chinese calendar	丁卯年 (Fire Rabbit); 3124 or 3064; — to —; 戊辰年 (Earth Dragon); 3125 or 3065
Coptic calendar	144–145
Discordian calendar	1594
Ethiopian calendar	420–421
Hebrew calendar	4188–4189
Hindu calendars
- Vikram Samvat	484–485
- Shaka Samvat	349–350
- Kali Yuga	3528–3529
Holocene calendar	10428
Iranian calendar	194 BP – 193 BP
Islamic calendar	200 BH – 199 BH
Javanese calendar	312–313
Julian calendar	428; CDXXVIII
Korean calendar	2761
Minguo calendar	1484 before ROC; 民前1484年
Nanakshahi calendar	−1040
Seleucid era	739/740 AG
Thai solar calendar	970–971
Tibetan calendar	阴火兔年; (female Fire-Rabbit); 554 or 173 or −599; — to —; 阳土龙年; (male Earth-Dragon); 555 or 174 or −598

Millennium:	1st millennium
Centuries:	4th century – 5th century – 6th century
Decades:	390s 400s 410s – 420s – 430s 440s 450s
Years:	425 426 427 – 428 – 429 430 431

428 (CDXXVIII) was a leap year starting on Sunday of the Julian calendar, the 428th year of the Common Era (CE) and Anno Domini (AD) designations, the 428th year of the 1st millennium, the 28th year of the 5th century, and the 9th year of the 420s decade. As of the start of 428, the Gregorian calendar was 1 day ahead of the Julian calendar, which was the dominant calendar of the time.

Events

Bonifacius, Roman governor of Africa, asks for help from the Vandals in his revolt.
Flavius Felix is elected consul for the Western Empire.

King Gunderic, age 49, dies after a reign of 21 years. He is succeeded by his half-brother Genseric.
King Vortigern asks Germanic warriors to help him strengthen his position in Britain. He hires Saxons as mercenaries to fight against the Picts and the Scots beyond Hadrian's Wall.
Chlodio, king of the Salian Franks, invades Northern Gaul. He defeats the Roman army at Cambrai. He extends his kingdom south to the River Somme. Tournai (modern Belgium) becomes his residence.

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.

April 10 – Nestorius is made patriarch of Constantinople. He preaches a new doctrine that will be called Nestorianism. It comes under immediate attack from pope Celestine I and Cyril of Alexandria.
Hydatius becomes bishop of Aquae Flaviae in Gallaecia (modern Chaves) 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.

Traina, Giusto (2011). 428 AD: An Ordinary Year at the End of the Roman Empire. Princeton University Press. ISBN 978-0-691-15025-3.