870

This article is about the year 870. For the shotgun, see Remington 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

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

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

Events

Prague Castle is founded.
The Great Summer Army invades England led by Bagsecg and conquers East Anglia; the buildings destroyed by the Danish invaders include the abbey of Ely and the monastery of Peterborough.
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.