Great Heathen Army invades England

Timeline

1. 865East Anglia · East AngliaAccording to the Anglo-Saxon Chronicle, the Viking Great Heathen Army landed in East Anglia in the winter of 865, using a winter camp as its base, changing the previous pattern of small-scale raiding.
2. 866–874Northern and central England · EnglandThe army successively captured York, conquered Northumbria and East Anglia, and pushed deep into Mercia; many Anglo-Saxon kingdoms fell, and the Vikings began to settle and grant fiefs locally.
3. 875–878Wessex frontier · WessexViking forces turned to attack Wessex, with chieftains such as Guthrum leading armies deep into the region, sparking a long war with Alfred the Great; the Danelaw gradually took shape in northern and eastern England.