This document provides an overview of the Middle Ages in Europe from 500-1200 AD. It discusses the political developments in England including the rule of Alfred the Great, William the Conqueror, and the establishment of common law. It also summarizes the Cluny Reforms in the Catholic Church, the East-West Schism, and Urban II's call for the First Crusade at the Council of Clermont in 1095 to retake the Holy Land. The Crusades lasted into the late 13th century and involved conflicts between Christians, Muslims, and Byzantines over control of religious sites. Feudalism developed as a political and economic system during this period.