Who took Western Europe by religious hysteria in the 10th century? What changed in Palestine between the 7th and 10th centuries? Pilgrims had been visiting Christian holy places for 300 years before the Crusades, and had been welcomed by Muslim leaders. But a complex mixture of the poor, believers in the end of the world, aristocrats in search of wealth, and everyday folk were a spectacle travelling on foot for 3,000 km, and led to a massive disruption in the Levant that echoed for centuries. This course looks at all sides; the European Catholics, the Byzantine Orthodox Empire and the Muslim states. Also, the crusades in Iberia, the Balkans and the Baltic zone.