A session of the Council of Trent, at which the Summa Theologica of St. Thomas Aquinas was placed on the altar alongside the Holy Scriptures.
Pope Paul IV Cum ex Apostolatus Officio
Pope Leo XIII Satis Cognitum
Pope Pius XI Mortalium Animos
Pope St. Pius X Pascendi Dominici Gregis
Oath Against Modernism
Liberalism is a Sin