685

685 in various calendars
Gregorian calendar	685; DCLXXXV
Ab urbe condita	1438
Armenian calendar	134; ԹՎ ՃԼԴ
Assyrian calendar	5435
Balinese saka calendar	606–607
Bengali calendar	91–92
Berber calendar	1635
Buddhist calendar	1229
Burmese calendar	47
Byzantine calendar	6193–6194
Chinese calendar	甲申年 (Wood Monkey); 3382 or 3175; — to —; 乙酉年 (Wood Rooster); 3383 or 3176
Coptic calendar	401–402
Discordian calendar	1851
Ethiopian calendar	677–678
Hebrew calendar	4445–4446
Hindu calendars
- Vikram Samvat	741–742
- Shaka Samvat	606–607
- Kali Yuga	3785–3786
Holocene calendar	10685
Iranian calendar	63–64
Islamic calendar	65–66
Japanese calendar	Hakuchi 36; (白雉３６年)
Javanese calendar	577–578
Julian calendar	685; DCLXXXV
Korean calendar	3018
Minguo calendar	1227 before ROC; 民前1227年
Nanakshahi calendar	−783
Seleucid era	996/997 AG
Thai solar calendar	1227–1228
Tibetan calendar	阳木猴年; (male Wood-Monkey); 811 or 430 or −342; — to —; 阴木鸡年; (female Wood-Rooster); 812 or 431 or −341

Millennium:	1st millennium
Centuries:	6th century; 7th century ; 8th century;
Decades:	660s; 670s; 680s ; 690s; 700s;
Years:	682; 683; 684; 685 ; 686; 687; 688;

Year 685 (DCLXXXV) was a common year starting on Sunday (link will display the full calendar) of the Julian calendar. The denomination 685 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

September – Justinian II succeeds Constantine IV as emperor of the Byzantine Empire.
Having defeated Avars in Syrmia, Tervel's uncle leads Hungarian Bulgar Sermisianoi migrating to Keramissian plain in Macedonia.

May 20 – Battle of Dun Nechtain: The Picts under king Bridei III revolt against their Northumbrian overlords. Cuthbert, bishop of Lindisfarne, advises king Ecgfrith not to invade Pictland (modern Scotland). Undeterred, Ecgfrith marches his army north to engage the enemy near Dunnichen. The Picts, possibly with Scottish and Strathclyde Briton help, defeat the Saxon guard. Ecgfrith is killed after a 15-year reign, routing his army and forcing the Anglo-Saxons to withdraw south of the River Forth.
King Centwine of Wessex dies after a 9-year reign and is succeeded by his distant cousin, Cædwalla, who manages to fully re-unite the sub-kingdoms of Wessex. He attacks with a large army Sussex and kills king Æthelwealh in battle in the South Downs (Hampshire).^[1] He is expelled by Æthelwealh's ealdorman, Berthun and Andhun, who are jointly rule the South Saxons. Cædwalla invades Kent, lays it waste, and carries of an immense booty.^[2]
Plague kills almost all the monks in a Northumbrian monastery, aside from the abbot and one small boy – future scholar Bede.

The Umayyad caliph Marwan I (684–685) is succeeded by Abd al-Malik ibn Marwan (685–705).
Battle of 'Ayn al-Warda in Syria
In Japan, the styles of official ranks are reformed so that there are in all 48 grades.
Wu Zetian gives two giant pandas to Japan.

^ Alec Hamilton-Barr. In Saxon Sussex. The Arundel Press, Bognor Regis, p. 21
^ A Chronicle of England (B.C. 55–A.D. 1485), by James. E. Doyle (1864). "The Saxons", p. 37

Gregorian calendar	685 DCLXXXV
Ab urbe condita	1438
Armenian calendar	134 ԹՎ ՃԼԴ
Assyrian calendar	5435
Balinese saka calendar	606–607
Bengali calendar	91–92
Berber calendar	1635
Buddhist calendar	1229
Burmese calendar	47
Byzantine calendar	6193–6194
Chinese calendar	甲申年 (Wood Monkey) 3382 or 3175 — to — 乙酉年 (Wood Rooster) 3383 or 3176
Coptic calendar	401–402
Discordian calendar	1851
Ethiopian calendar	677–678
Hebrew calendar	4445–4446
Hindu calendars
- Vikram Samvat	741–742
- Shaka Samvat	606–607
- Kali Yuga	3785–3786
Holocene calendar	10685
Iranian calendar	63–64
Islamic calendar	65–66
Japanese calendar	Hakuchi 36 (白雉３６年)
Javanese calendar	577–578
Julian calendar	685 DCLXXXV
Korean calendar	3018
Minguo calendar	1227 before ROC 民前1227年
Nanakshahi calendar	−783
Seleucid era	996/997 AG
Thai solar calendar	1227–1228
Tibetan calendar	阳木猴年 (male Wood-Monkey) 811 or 430 or −342 — to — 阴木鸡年 (female Wood-Rooster) 812 or 431 or −341