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One of the first major divisions happened in Christianity. Believed Jesus was the savior sent by God.
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St. Irenaeus wrote a famous treatise, Against Heresies, refuting Gnosticism.
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Antony gives away his possessions and begins life as a hermit. This is a key event in the development of Christian monasticism.
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Columba goes a as a missionary to Scotland. He establishes the legendary monastic mission center at lona.
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A division, which created Eastern Orthodox and the Roman Calothic, today.
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Pope Urban II launches the First Crusade. The crowd wildly shouts "God wills it!" There would be several crusades over the next centuries with many tragic results.
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Peter Waldo founds the Waldensians, a reform movement emphasizing poverty, preaching, and the Bible.
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Dante completes The Divine Comedy, the greatest work of Christian literature.
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Johann Gutenberg produces the first printed Bible.
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Fire destroys Rome and Emperor Nero blames the Christians. St. Peter, one of the Twelve Apostles of Jesus Christ, was martyred.
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After Titus destroys Jerusalem and its temple, a separation occur between Christianity and Judaism.
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Another split happened in Christianity, following Marcionism. Believed Jesus Christ was the Son of God.
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Author of the Monastic Rule, setting out rules for the establishment of monasteries.
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Benedict of Nursia establishes his monastic order. His rule becomes one of the most influential in the West.
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A monastery is established at cluny and becomes a center for reform. By the mid 12th century, there were over 1000 Clunaic houses.
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Charlemagne crowned emperor by the pope. He advances the church, education, and culture.