The largest Christian Church and one of the oldest. The Catholic Church is overseen by a hierarchy led by the Pope.

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Are there any historians who believe that the crusades were not motivated as a distraction from internal conflicts?

I was just debating with a Catholic acquaintance. He ascribed merit to the Catholic crusades and said that many historians agreed with him. Are there any historians who believe that the crusades were ...
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What corrections did the Catholic church make to the Copernicus work “De revolutionibus”?

Catholic encyclopedia says: On 5 March, 1616, the work of Copernicus was forbidden by the Congregation of the Index "until corrected", and in 1620 these corrections were indicated. Nine sentences, ...
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How educated were the clergy during the Medieval period?

I understand that Latin was common language of clergy in Medieval times. I presume that bishops could read and write. There were also some monks responsible of copying books. What about "normal" ...
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What were the responses to Copernicus' heliocentric theory?

Popular explanations often mention that the "Catholic Church" had a problem with Copernicus and his heliocentric theory, neglecting that even a scientific disagreement at that period would likely have ...
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Inquiry into the nature and roots of the temporal power of the Roman Catholic Pope:

The Roman Catholic Pope is head of both the Roman Catholic Church: "Supreme Pontiff of the Universal Church", and a head of state: "Sovereign of the Vatican City State". Official list of Papal titles ...
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What was the relationship between the Catholic Church and the Carolingian emperors?

Charlemagne was crowned by the pope in the year 800. But was it Charlemagne's choice, or was he compelled to do so? Having conquered his lands, couldn't he just crown himself emperor? Moreover, did ...