The Norman Conquests refer to the series of military campaigns led by the Normans to invade and conquer England in 1066. This pivotal event began with the Battle of Hastings, where William the Conqueror, the Duke of Normandy, defeated King Harold II. The victory marked the end of Anglo-Saxon rule and the beginning of Norman dominance in England. Following the conquest, the Normans introduced significant changes to English society, including the establishment of feudalism and the construction of castles. The Domesday Book, a comprehensive survey of land and resources, was created to assess the wealth of the newly acquired territories. These changes had a lasting impact on English culture and governance.