The document summarizes several important events from the Middle Ages period: 1) The Treaty of Verdun in 843 AD divided the Carolingian Empire into three kingdoms among the sons of Louis the Pious after his death. 2) Otto I was crowned Holy Roman Emperor in 962 AD, establishing the Ottonian Holy Roman Empire of Germany. 3) The Battle of Hastings in 1066 AD was a decisive Norman victory over the English army of King Harold Godwinson, beginning the Norman conquest of England. 4) King John of England agreed to the Magna Carta in 1215 AD, which protected church rights and limited feudal payments to the Crown.