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papal infallibility
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dogma of the Catholic Church; infallibility of certain decisions of the Pope
~40 min read
Encyclopedic overview
Pope Pius IX (1846–1878), during whose papacy the doctrine of papal infallibility was dogmatically defined by the First Vatican Council
Texts
Excerpted from Wikipedia’s “papal infallibility” article, available under the CC BY-SA 4.0 licence.