670

Millennium:	1st millennium
Centuries:	6th century – 7th century – 8th century
Decades:	640s 650s 660s – 670s – 680s 690s 700s
Years:	667 668 669 – 670 – 671 672 673

670 by topic
Politics
State leaders – Sovereign states
Birth and death categories
Births – Deaths
Establishment and disestablishment categories
Establishments – Disestablishments

670 in other calendars
Gregorian calendar	670 DCLXX
Ab urbe condita	1423
Armenian calendar	119 ԹՎ ՃԺԹ
Assyrian calendar	5420
Bengali calendar	77
Berber calendar	1620
Buddhist calendar	1214
Burmese calendar	32
Byzantine calendar	6178–6179
Chinese calendar	己巳年 (Earth Snake) 3366 or 3306 — to — 庚午年 (Metal Horse) 3367 or 3307
Coptic calendar	386–387
Discordian calendar	1836
Ethiopian calendar	662–663
Hebrew calendar	4430–4431
Hindu calendars
- Vikram Samvat	726–727
- Shaka Samvat	592–593
- Kali Yuga	3771–3772
Holocene calendar	10670
Iranian calendar	48–49
Islamic calendar	49–50
Japanese calendar	N/A
Julian calendar	670 DCLXX
Korean calendar	3003
Minguo calendar	1242 before ROC 民前1242年
Seleucid era	981/982 AG
Thai solar calendar	1212–1213

Wikimedia Commons has media related to 670.

Year 670 (DCLXX) was a common year starting on Tuesday (link will display the full calendar) of the Julian calendar. The denomination 670 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

Arab-Byzantine War: The Arab fleet dominates the Aegean Sea and conquers the strategic islands, Rhodes, Cos and Chios. The southern shore of the Sea of Marmara is taken, providing an excellent base at Cyzicus to begin the blockade of Constantinople by sea.^[1]

February 15 – King Oswiu of Northumbria dies during a pilgrimage to Rome in the company of bishop Wilfrid.^[2] He is succeeded by his son Ecgfrith, while his youngest son Ælfwine becomes king of Deira. Oswiu is buried at Whitby Abbey, alongside Edwin of Northumbria.

Muslim Conquest: Arab forces (10,000 men) under general Uqba ibn Nafi invade the Byzantine Exarchate of Africa. He establishes a military base at Kairouan (Tunisia) for further invasions and founds the Great Mosque also known as the "Mosque of Uqba".

Battle of Dafei River: Chinese forces (80,000 men) under general Xue Rengui of the Tang Dynasty are annihilated by the Tibetans, who take over control of the Tarim Basin.
A Goguryeo restoration movement, led by Geom Mojam in northern Korea, places Anseung on the throne. Geom is later murdered and Anseung flees to neighboring Silla.
Tarumanagara (modern Indonesia) is divided into two kingdoms: Sunda Kingdom and Galuh Kingdom with the Citarum River as the boundary (approximate date).
A family register, Kogo-nenjaku, is prepared in Japan (approximate date).

Hōryū-ji, Japanese Buddhist temple, burns to the ground after being hit by lightning; its reconstruction is immediately begun.
The diocese of Dorchester-on-Thames in England is replaced by the Diocese of Winchester (approximate date).

↑ John Cairns, "Road to Manzikert" (2012). Byzantine Warfare in an Age of Crisis and Recovery (Chapter 3), p. 67. ISBN 978-1-84884-215-1
↑ Bede, "Ecclesiastical History", Book IV, Chapter 5