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Millennium: 1st millennium
284 in various calendars
Gregorian calendar284
Ab urbe condita1037
Assyrian calendar5034
Balinese saka calendar205–206
Bengali calendar−309
Berber calendar1234
Buddhist calendar828
Burmese calendar−354
Byzantine calendar5792–5793
Chinese calendar癸卯年 (Water Rabbit)
2981 or 2774
    — to —
甲辰年 (Wood Dragon)
2982 or 2775
Coptic calendar0–1
Discordian calendar1450
Ethiopian calendar276–277
Hebrew calendar4044–4045
Hindu calendars
 - Vikram Samvat340–341
 - Shaka Samvat205–206
 - Kali Yuga3384–3385
Holocene calendar10284
Iranian calendar338 BP – 337 BP
Islamic calendar348 BH – 347 BH
Javanese calendar163–165
Julian calendar284
Korean calendar2617
Minguo calendar1628 before ROC
Nanakshahi calendar−1184
Seleucid era595/596 AG
Thai solar calendar826–827
Tibetan calendar阴水兔年
(female Water-Rabbit)
410 or 29 or −743
    — to —
(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.


By place[edit]

Roman Empire[edit]

  • 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 – The commander of Numerian's domestici (household troops), Diocles, is chosen to be the new emperor. In a military assembly outside Nicomedia (modern İzmit, Turkey), Diocles claims that the praetorian prefect (and rival for the throne) Arrius Aper murdered Numerian, and he personally stabs and kills the prefect on the spot. The new emperor changes his name to the Latinised 'Diocletian'. Building on existing trends, Diocletian presents his rule as that of a god-like dominus or autocrat.
  • Sabinus Julianus, the praetorian prefect of Emperor Carinus, exploits the instability and usurps the throne in northern Italy.

Persian Empire[edit]


By topic[edit]





  1. ^ "List of Rulers of Korea". www.metmuseum.org. Retrieved April 21, 2019.