The concept map on the Crusades is a useful summary and study guide for reviewing medieval history. The map explains what the Crusades were, their connection with pilgrimages to the Holy Land, their main religious, political, social and economic causes, and the role of the Church. It covers the main events, including the conquest of Jerusalem in 1099, led by Godfrey of Bouillon, and its reconquest by Sultan Saladin in 1187. The map also presents some consequences of the Crusades, including increased trade between East and West and greater contact with Arab culture.