Abstract

Abbey, Alexander On the 8 December 1864, the tenth anniversary of the proclamation of the Immaculate Conception, Pius IX issued his encyclical Quanta Cura with its attached Syllabus Errorum. The Syllabus marked the gradual increase in papal authority which began in 1854 and culminated with the decree of papal infallibility at the First Vatican Council in 1870. In Europe the Syllabus divided Catholics and non-Catholics, forced the hand of ultramontanes and liberals, and left many Catholics simply bewildered and confused