What makes 1066 such a pivotal year in the history of Western civilization? How has the meaning of the Norman Conquest been debated and interpreted over time? And how did two weddings-between the English king Aethelred and the duke of Normandy's sister, Emma, and then, after the death of Aethelred, Emma's marriage to the Danish king Cnut-lay the groundwork for this tumultuous moment? Find out in this lecture that provides crucial information for grasping the Norman Conquest.