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Armenia was the first country to ever adopt Christianity as its religion.
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A proclamation that permanently established religious toleration for Christianity within the Roman Emire. Political agreement concluded in Milan between the Roman emperors Constantine.
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The establishment of Christianity is discussed as the state religion by Emperor Constantine. The church began to make headway among the aristocracy.
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A split within the Roman Catholic Church between the Eastern Church and the Western Church.
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The first of many crusades, sent by Pop Urban II, that attempted to capture the Holy Lands. It started off as a widespread pilgrimage, but ended up as a military expedition by Roman Catholic Europe to regain the Holy Lands taken by the Muslim conquests.
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Announced by Pope Eugene III. It was the first crusade to be led by European kings: Louis VII (France) and Conrad III (Germany).
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A large-scale massacre of the Roman Catholic inhabitants of Constantinople (capital of the Byzantine Empire), by the Eastern Orthodox population of the city.
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Also known as The Kings' Crusade. It was an attempt by European leaders to reconquer the Holy Land from Saladin. The crusade was overall successful - they captured important cities. Though they failed to capture Jerusalem.
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The orginal plan was to conquer Muslim-controlled Jerusalem. However, the majority of the leaders enter into an agreement with Byzantine to divert to Constantinople.
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A period of time (1309-1378) when the Pope moved from Rome to Avignon (France), primarily because of the current political conditions.
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The papacy returns from Avigon to Rome. This lead to the Great Schism.
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As the Ottoman power and territory grew, the Venetians had important trading relationships with them. Nonetheless, the Ottomon siege on Constantinople tightened and only the Venetians attempted to provide any subtantial military assistance to the Byzantines.
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Religious, political, intellectual and cultural upheaval that splintered Catholic Europe. It set places in structures and beliefs that would define the continent in the modern era.
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The pope crowned Charlemagne as emperor in order to resurrect the ancient Western Roman Empire. This caused Christianity to move from the Mediterranean area to the kingdom of the Franks to Rome.