447

This article is about the year 447. For the flight, see Air France Flight 447.

Millennium:	1st millennium
Centuries:	4th century 5th century 6th century
Decades:	420s 430s 440s 450s 460s
Years:	444 445 446 447 448 449 450

447 in various calendars

Gregorian calendar	447 CDXLVII
Ab urbe condita	1200
Assyrian calendar	5197
Balinese saka calendar	368–369
Bengali calendar	−146
Berber calendar	1397
Buddhist calendar	991
Burmese calendar	−191
Byzantine calendar	5955–5956
Chinese calendar	丙戌年 (Fire Dog) 3144 or 2937     — to — 丁亥年 (Fire Pig) 3145 or 2938
Coptic calendar	163–164
Discordian calendar	1613
Ethiopian calendar	439–440
Hebrew calendar	4207–4208
Hindu calendars
- Vikram Samvat	503–504
- Shaka Samvat	368–369
- Kali Yuga	3547–3548
Holocene calendar	10447
Iranian calendar	175 BP – 174 BP
Islamic calendar	180 BH – 179 BH
Javanese calendar	331–333
Julian calendar	447 CDXLVII
Korean calendar	2780
Minguo calendar	1465 before ROC 民前1465年
Nanakshahi calendar	−1021
Seleucid era	758/759 AG
Thai solar calendar	989–990
Tibetan calendar	阳火狗年 (male Fire-Dog) 573 or 192 or −580     — to — 阴火猪年 (female Fire-Pig) 574 or 193 or −579

Priscus of Panium (left) with the Roman embassy at the court of Attila the Hun

Year 447 (CDXLVII) was a common year starting on Wednesday (link will display the full calendar) of the Julian calendar. At the time, it was known in the Roman Empire as the Year of the Consulship of Calepius and Ardabur (or, less frequently, year 1200 Ab urbe condita). The denomination 447 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

By place

Byzantium

• November 6 – The Walls of Constantinople are severely damaged by an earthquake, which destroys large parts of the structure, including 57 towers. The population is threatened by a plague. Emperor Theodosius II orders Constantine, praetorian prefect of the East, to supervise the repairs. He employs the city's demoi ("Circus factions") in the work, and rebuilds the walls within 60 days.
• The Huns, led by Attila, cross the Danube, and invade the Balkans as far as Thermopylae (Greece). During the invasion, Serdica (modern Sofia) is destroyed. For disobeying the terms of the treaty made in 442, Attila triples his demand for tribute to 2,100 pounds (ca. 700 kg) of gold per year; and the ransom for each Roman prisoner to 12 solidi.
• Theodosius II sends an embassy to Attila; Priscus of Panium, envoy for the Eastern Roman Empire. Priscus records one of the few eyewitness accounts of the Hun kingdom.
• Battle of the Utus: Attila defeats the Roman army near the river Utus (Vit, Bulgaria). The Huns are forced to abandon the siege of Constantinople. They march north and plunder the defenseless Balkan provinces (including Thrace, Scythia, Moesia, Dacia and Illyricum).
• Winter – Theodosius II chooses a policy to protect Constantinople against the Huns. He removes Aspar and Areobindus (magister militum) from their military commands.

Europe

• Vortigern, king of the Britons, receives the Saxon leaders Hengist and Horsa "as friends" and grants the brothers the Isle of Thanet, most easterly point of Kent (England).

By topic

Arts and Sciences

• The first entry in the Annales Cambriæ refers to this year.

Religion

• Germanus, bishop of Auxerre, makes his second visit to Britain. He spiritually combats the revived Pelagian threat and expels the Irish from Powys (Wales).
• The Synod of Toledo (Spain) tries to add the filioque clause to the Nicene Creed. The Eastern Orthodox Church refuses to go along with this idea.

Deaths

• Areobindus, Roman general (magister militum)
• Juqu Mujian, prince of the Chinese state Northern Liang
• Secundinus (or Seachnaill), patron saint