The document summarizes key events in medieval English history from the Norman Conquest in 1066 to the establishment of the Tudor dynasty in 1485. It describes William the Conqueror becoming the first Norman king of England after defeating King Harold at the Battle of Hastings. It also discusses the reign of King Henry II and the murder of Thomas Becket, as well as the Hundred Years' War between England and France that lasted from 1337 to 1453. Finally, it outlines the War of the Roses between the houses of Lancaster and York from 1455 to 1485, ending with Henry Tudor defeating Richard III at Bosworth Field to become King Henry VII and unite the houses.