by Jayson M. Brunelle On December 8, 1854, Pope Pius IX solemnly issued the Apostolic Constitution, Ineffabilis Deus, wherein – exercising the uniquely Petrine charism of infallibility, which all valid successors of Peter enjoy, and which, itself, was solemnly defined during the First Vatican Council – His Holiness defined the longstanding doctrine of the Immaculate Conception of the Blessed […]![]()
