284

Year 284 (CCLXXXIV) was a leap year starting on Tuesday of the Julian calendar.

Millennium:	1st millennium
Centuries:	2nd century – 3rd century – 4th century
Decades:	250s  260s  270s  – 280s –  290s  300s  310s
Years:	281 282 283 – 284 – 285 286 287

284 in other 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) 2980 or 2920     — to — 甲辰年 (Wood Dragon) 2981 or 2921
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	ཆུ་མོ་ཡོས་ལོ་ (female Water-Hare) 410 or 29 or −743     — to — ཤིང་ཕོ་འབྲུག་ལོ་ (male Wood-Dragon) 411 or 30 or −742

Emperor Diocletianus

Events

By place

Roman Empire

• The Bagaudae, a group of peasants, revolt in Gaul against the Roman Empire. The Dardani, a region in Illyria, becomes a Roman province.
• Emperor Numerian travels through Bithynia (Asia Minor). He is murdered on his way home to Rome.
• November 20 – Gaius Aurelius Valerius Diocletianus, age 39, is made emperor.
• Sabinus Julianus, Roman usurper against Emperor Carinus, revolts in Pannonia. He attacks northern Italy and makes himself emperor.
• Winter – Diocletianus moves with his army across the Balkans.

By topic

Religion

• Patriarch Rufinus I succeeds Patriarch Dometius as Patriarch of Constantinople.

Births

• Jin Huidi, Chinese emperor of the Jin Dynasty (d. 313)

Deaths

• Diophantus, Greek mathematician (approximate date)
• Marcus Aurelius Numerian, Roman Emperor
• Sun Hao, last emperor of the Kingdom of Wu (b. 242)
• Xin Xianying, daughter of Xin Pi (b. 205)