870

Millennium:	1st millennium
Centuries:	8th century – 9th century – 10th century
Decades:	840s  850s  860s  – 870s –  880s  890s  900s
Years:	867 868 869 – 870 – 871 872 873

Year 870 (DCCCLXX) was a common year starting on Sunday of the Julian calendar.

Events

By place

Europe

• Prague Castle is founded.
• The Great Summer Army invades England. It is led by Bagsecg. They conquers East Anglia.
• August 8 – Treaty of Meerssen: Charles the Bald and Louis the German divide Lotharingia among themselves.
• December 31 – The Danes are defeated by a Saxon army at Englefield, Berkshire. It is the first of a series of battles between Wessex and the Danes.
• Malta is conquered by Arabs from Sicily.
• Borivoj becomes duke of Bohemia.
• Charles the Bald marries Richilde.

By topic

Religion

• Michael II succeeds Michael I as Patriarch of Alexandria.
• The Autonomous Bulgarian Archbishopric is made.
• February 28 – The Fourth Council of Constantinople ends.

Births

• Al-Farabi, Persian philosopher and scientist
• Zwentibold, King of Lotharingia

Deaths

• November 20 – King Edmund of East Anglia
• al-Bukhari, Persian hadith compiler
• Al-Kindi, philosopher