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  Islamic expansion. Convention of Constantinople, an international treaty of 1888 regulating the free use of the Suez Canal
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  Spread of Christianity, they were forced to battle.
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        Charlemagne used his power to become a king himself. Regardless of the differences, Christianity. - 
  
  They were military expeditions that aimed to take Jerusalem and recover for Christendom the holy places that had fallen into the hands of the Turks.
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        One of the most important antecedents of constitutionalism, it contains basic principles of both public and private law. - 
  
  
        It was a cultural phenomenon that takes up the principles of classical antiquity and updates them through humanism. - 
  
  
        A disease carried by rats . 1/3 of population died. - 
  
  The discoveries made by European explorers allowed for a greater understanding of the American continents and the people who live on them.
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        It was discovered by the German Johannes Gutenberg. -