July 3, 1907

Pope Pius X

Lamentabili Sane

- against new erroneous theological views.

November 18, 1907 Pope Pius X

Praestantia Scripturae

motu proprio on biblical studies and the modernists begining.

December 11, 1925

Pope Pius XI

Quas Primas

apostolic encyclical on the decree of the feast of Christ the King

December 31, 1929

Pope Pius XI

Divini Illius Magistri

apostolic encyclical on the Christian education of the youth

Papal documents