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In reply to the discussion: Dem chief: Kucinich a 'narcissist' [View all]pnwmom
(110,300 posts)in thousands of years of Church history.
From Wikipedia:
http://en.wikipedia.org/wiki/Papal_infallibility#Instances_of_infallible_declarations
The Catholic Church does not teach that the pope is infallible in everything he says; official invocation of papal infallibility is extremely rare.
Catholic theologians agree that both Pope Pius IX's 1854 definition of the dogma of the Immaculate Conception of Mary and Pope Pius XII's 1950 definition of the dogma of the Assumption of Mary are instances of papal infallibility, a fact which has been confirmed by the Church's magisterium.[66] However, theologians disagree about what other documents qualify.
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(The same article lists the following documents as possibly falling under ex-cathedra, but under some dispute.)
"Tome to Flavian", Pope Leo I, 449, on the two natures in Christ, received by the Council of Chalcedon;
Letter of Pope Agatho, 680, on the two wills of Christ, received by the Third Council of Constantinople;
Benedictus Deus, Pope Benedict XII, 1336, on the beatific vision of the just prior to final judgment;
Cum occasione, Pope Innocent X, 1653, condemning five propositions of Jansen as heretical;
Auctorem fidei, Pope Pius VI, 1794, condemning seven Jansenist propositions of the Synod of Pistoia as heretical;