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The bubonic plague spreads to all urban establishments in the Mediterranean Basin. A deadly disease caused by bacteria
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The preacher of Islam was born in this year. Islam later became a major religion of the Middle Ages.
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Christianity receives a new Pope in the form of Gregory the Great under whose command the missionary works reach new heights.
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Formation of Peace and Truce movement by the Catholic Church. The first of its kind movement in the Medieval Europe for the control of society using non-violet means.
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Period of church reform begins under the Pope Gregory VII
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First crusades begin. Muslims are defeated on orders from Pope Urban II and Jerusalem is retaken.
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spreads in all Europe killing nearly 40-50 % of population