The Romans ruled Britain from around AD 40 to 410, after which various Germanic tribes including the Saxons invaded. The Saxons brought their own language and culture and eventually became the dominant people in Britain. In 597, Christian missionaries arrived and introduced Latin and early literature. Vikings also began invading in the late 8th century and ruled parts of England until the 11th century. The epic poem Beowulf was written down in Old English between the 8th-11th centuries, describing events from the 6th century among Scandinavian peoples. In 1066, William the Conqueror invaded from Normandy and defeated the English at the Battle of Hastings, bringing Norman rule.