The document summarizes the Norman Invasion of England in 1066, including the key events leading up to and following the Battle of Hastings. It describes how William, Duke of Normandy, claimed the English throne after the death of King Edward the Confessor and invaded England. His forces defeated the English army led by King Harold Godwinson at the Battle of Hastings on October 14, 1066. William was then crowned as the new King of England on Christmas Day 1066, profoundly impacting England by establishing Norman rule.