The Norman Invasion refers to the conquest of England by the Normans in 1066, led by William the Conqueror. This event began with the Battle of Hastings, where William defeated King Harold II. The invasion marked the end of Anglo-Saxon rule in England and established Norman control over the territory. Following the invasion, the Normans introduced significant changes to English society, including the feudal system and the construction of castles. The Domesday Book, a comprehensive survey of land and resources, was created to assess the wealth of the newly conquered lands. This invasion had lasting impacts on English culture, language, and governance.