Editing 876 (section)

==== Britain ====
* The [[Great Heathen Army]], led by [[Guthrum]], captures the fortress of [[Wareham, Dorset|Wareham]] ([[Dorset]]), and is met by a Viking army (3,500 men) from the sea, which lands at [[Poole Harbour]]. King [[Alfred the Great]] traps the [[Vikings]], and demands hostages in return for a [[peace agreement]]. The [[Denmark|Danes]] divide their forces; half flees to [[Exeter]], where they [[besiege]] the town while the other half escape in their ships, but are lost in a storm near [[Swanage]].<ref>{{cite book |last1=Hill |first1=Paul |title=The Viking Wars of Alfred the Great |date=2009 |publisher=Pen & Sword History |page=66 |isbn=978-1-59416-087-5}}</ref>
* Viking leader [[Halfdan Ragnarsson]] formally establishes the Danish kingdom of [[Scandinavian York|York]], after the removal of the puppet king [[Ricsige of Northumbria]], and becomes the first monarch.