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Held from October 8 to November 1, 451 A.D in Chalcedon, a city in Asia Minor. The council laid the groundwork for one of the most significant events in the churches history, The Great Schism. A man named Arius had taught the false doctrine that the Son of God was a great being and different person to the father.
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The East-West Schism is the the split of communion between the Eastern Orthodox and Catholic churches, started with Pope Leo IX and Patriarch Michael I excommunicated each other. The main cause of the schism were disputes over papal authority.
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In 1348 everyone looked to the church for rituals of comfort because of the black death. When no one could not find the cure for the black death everyone started to blame God for their deaths as a punishment for their sinful behaviour. People started to leave the Catholic church because they believed God couldn't help them anymore.
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On October 31,1517 priest and scholar Martin Luther nailed a piece of paper to the castle church in Wittenberg which had 95 revolutionary opinions which began the protestant reformation. In his theses he shows his disapproval and corruption of the Roman Catholic church, focusing on indulgences.
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The ecumenical council opened at Trent on 13 December, 1545, It's main objective was the definitive determination of the belief taught by the church in answer to the heresies of the protestants.
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first permanent legal basis for the coexistence of Lutheranism and Catholicism in Germany, got widely known on September 25, 1555, by the Diet of the Holy Roman Empire assembled earlier that year at Augsburg.
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First Vatican Council 20th ecumenical council of the Roman Catholic Church, called together by Pope Pius IX to deal with contemporary problems. The pope was referring to the rising influence of rationalism, liberalism, and materialism.
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The Second Vatican Council addressed relations between the Roman Catholic Church and the modern world. Several changes resulted from the council, including the renewal of consecrated life with a revised charism and the ecumenical efforts towards dialogue with other religions. According to Pope Benedict XVI, the most important message of the council is "the Paschal Mystery as the center of what it is to be Christian"
