The Viking presence in Britain began in the late 8th century with raids on coastal settlements. By the 9th century, the Vikings had established settlements in various parts of Britain, particularly in the north and east. These settlements eventually coalesced into a kingdom known as the Danelaw, which covered much of northern and eastern England. The Vikings also had a significant impact on British culture and language, contributing words such as "berserk" and "skull" to the English lexicon. By the 11th century, the Vikings had largely been assimilated into British society, although their legacy can still be seen in place names, archaeological remains, and cultural traditions.