Quanta Cura and Syllabus of Errors (Pius IX 1864) Encyclical

QUANTA CURA AND SYLLABUS OF ERRORS ENCYCLICAL
Condemning Modern Errors Encyclical
Softcover - 29pp

Written to all bishops so they would see "...all the errors and pernicious doctrines which Pius IX has reprobated and condemned."

If you're looking for an easy to read document detailing a list of many errors in thinking, and creeds the Church finds unacceptable, this is a great place to start. Deepen your knowledge of Catholic teaching,