839 (DCCCXXXIX) was a common year starting on Wednesday of the Julian calendar, the 839th year of the Common Era (CE) and Anno Domini (AD) designations, the 839th year of the 1st millennium, the 39th year of the 9th century, and the 10th and last year of the 830s decade. As of the start of 839, the Gregorian calendar was 4 days ahead of the Julian calendar, which was the dominant calendar of the time.

Millennium: 1st millennium
Centuries: 8th century9th century10th century
Decades: 800s  810s  820s  – 830s –  840s  850s  860s
Years: 836 837 838839840 841 842
839 in other calendars
Gregorian calendar839
DCCCXXXIX
Ab urbe condita1592
Armenian calendar288
ԹՎ ՄՁԸ
Assyrian calendar5589
Balinese saka calendar760–761
Bengali calendar246
Berber calendar1789
Buddhist calendar1383
Burmese calendar201
Byzantine calendar6347–6348
Chinese calendar戊午(Earth Horse)
3535 or 3475
    — to —
己未年 (Earth Goat)
3536 or 3476
Coptic calendar555–556
Discordian calendar2005
Ethiopian calendar831–832
Hebrew calendar4599–4600
Hindu calendars
 - Vikram Samvat895–896
 - Shaka Samvat760–761
 - Kali Yuga3939–3940
Holocene calendar10839
Iranian calendar217–218
Islamic calendar224–225
Japanese calendarJōwa 6
(承和6年)
Javanese calendar736–737
Julian calendar839
DCCCXXXIX
Korean calendar3172
Minguo calendar1073 before ROC
民前1073年
Nanakshahi calendar−629
Seleucid era1150/1151 AG
Thai solar calendar1381–1382
Tibetan calendar阳土马年
(male Earth-Horse)
965 or 584 or −188
    — to —
阴土羊年
(female Earth-Goat)
966 or 585 or −187

Births

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Deaths

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  • Áed mac Boanta, king of Dál Riata
  • Aznar I, king of Aragon
  • Cathal mac Muirgiussa, king of Connacht
  • Chengguan, Chinese Buddhist monk (b. 738)
  • Cummascach mac Congalaig, king of Brega
  • Egbert, king of Wessex
  • Eóganan mac Óengusa, king of the Picts
  • Ibrahim ibn al-Mahdi, Muslim prince (b. 779)
  • Muhammad at-Taqi, Muslim ninth Ismā'īlī imam (or 840)
  • Muiredach mac Eochada, king of Ulaid
  • Pei Du, chancellor of the Tang Dynasty (b. 765)
  • Rorgon I, count of Maine (or 840)
  • Sicard, prince of Benevento
  • Vache, prince of Kakheti
  • Wiglaf, king of Mercia