In 1095, conflict between Christians and Muslims began a crusade (a military campaign in defense of Christianity) for the Battle of Jerusalem. This crusade involved people of other religions besides Christianity, such as the Jews, but they did not play a major role during this period. The Crusades lasted nearly two decades and consisted of eight different crusades. With all the events and actions that occurred during the Crusades, they produced too many effects over the years. There were short term effects and long term effects of the crusades that affected people of all different cultures. Two places that have had many effects from the Crusades are Europe and Islam. The Crusades had short- and long-term effects on power, economy, and classical knowledge throughout Europe and on Islam. In order for the Crusades to begin, the Christians had to raise an army to travel and fight the forces of the Muslims. With all the power held by the monarchies at the time, the church had to be cunning to get troops to put their lives on the line. To gain the support of these warriors and the dedication of the men, Pope Urban II (1088-1099) challenged the morals of the men by telling them to take up arms and join the holy war to reconquer the land of Jerusalem. It was not the challenge that convinced men to take part in this war. The promise of “immediate remission of sins” has attracted men to defend their religion and beliefs and, at the same time, promising them a journey to heaven when life comes to an end. With this statement, men immediately prepared for the battle which in a very short period of time gave the Church the power that had previously been held by monarchies. Rich and poor men prepared for battle, some wearing... middle of paper... Some of these effects still occur today. Works Cited Spielvogel, Jackson J. Western Civilization Volume 1: To 1715: A Brief History (Boston: Wadsworth/CengageLearning, 2014), pages 210, 212, 220-227, 379. Katharine J. Lualdi, Sources of The Making of the West: Peoples and Cultures (Bedford/St. Martins: Boston, MA, 2012) 194. (Named as Primary Sources for the Middle Ages on Our Angel for History 102.) Shawna Herzog, History 101-1, class lesson: 11.1 Ancient Trade Networks, 25 March 2015. Thomas Asbridge, The Crusades: The Clash of Civilizations, cinema. Published by: BBC, 2012.Asbridge, The Crusades, Film.Robert Gardner, The Making of Islam: Empire of Faith, Film. Published by PBS, 2000. Shawna Herzog, History 101-1, class lesson: 11.2 Society in the Middle Ages, March 27, 2014.Herzog, 11.2 Society in the Middle Ages.