670s

Byzantine Empire

• 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]

Britain

• 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.

Arabian Empire

• 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".

Asia

• 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).

Religion

• Hōryū-ji, a 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).

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