284

This article is about the year 284. For the number, see 284 (number). For the locomotive, see 2-8-4.

Millennium:	1st millennium
Centuries:	2nd century 3rd century 4th century
Decades:	260s 270s 280s 290s 300s
Years:	281 282 283 284 285 286 287

284 in various calendars

Gregorian calendar	284 CCLXXXIV
Ab urbe condita	1037
Assyrian calendar	5034
Balinese saka calendar	205–206
Bengali calendar	−309
Berber calendar	1234
Buddhist calendar	828
Burmese calendar	−354
Byzantine calendar	5792–5793
Chinese calendar	癸卯年 (Water Rabbit) 2981 or 2774     — to — 甲辰年 (Wood Dragon) 2982 or 2775
Coptic calendar	0–1
Discordian calendar	1450
Ethiopian calendar	276–277
Hebrew calendar	4044–4045
Hindu calendars
- Vikram Samvat	340–341
- Shaka Samvat	205–206
- Kali Yuga	3384–3385
Holocene calendar	10284
Iranian calendar	338 BP – 337 BP
Islamic calendar	348 BH – 347 BH
Javanese calendar	163–165
Julian calendar	284 CCLXXXIV
Korean calendar	2617
Minguo calendar	1628 before ROC 民前1628年
Nanakshahi calendar	−1184
Seleucid era	595/596 AG
Thai solar calendar	826–827
Tibetan calendar	阴水兔年 (female Water-Rabbit) 410 or 29 or −743     — to — 阳木龙年 (male Wood-Dragon) 411 or 30 or −742

Emperor Diocletian

Year 284 (CCLXXXIV) was a leap year starting on Tuesday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Carinus and Numerianus (or, less frequently, year 1037 Ab urbe condita). The denomination 284 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

Roman Empire

• November 20 – Emperor Numerian travels through Bithynia (Asia Minor) on his way home to Rome. Suffering from an inflammation of the eyes, he travels in a closed litter in which soldiers find his decaying corpse.
• November 20 – Diocletian, age 39, is proclaimed new emperor. He establishes himself at Nicomedia (modern İzmit, Turkey) and accepts the purple imperial vestments, claiming that the praetorian prefect (and rival for the throne) Arrius Aper murdered Numerian, killing him on the spot for the alleged deed. Diocletian carries out reforms of the Roman army, increasing conscription, and admitting large numbers of barbarian volunteers. In the winter he advances with his army across the Balkans.
• Sabinus Julianus, Roman usurper against Emperor Carinus, revolts in the Roman province of Pannonia on the edge of the Balkans. He invades northern Italy and declares himself emperor.
• The Bagaudae, a group of peasant insurgents, begin a revolt in Gaul against the Roman Empire.
• Diocletian declares the Dardani, a region located in Illyria, as a Roman province separate from Moesia.

Korea

• Yurye becomes king of the Korean kingdom of Silla.

By topic

Religion

• Rufinus succeeds Dometius as Bishop of Byzantium.

Births

• Sima Chi, later Emperor Huai of Jin, Chinese emperor of the Jin dynasty (d. 313)

Deaths

• November 20 – Numerian, Roman emperor
• Sun Hao, Chinese emperor of the Eastern Wu state (b. 243)