Papal Encyclicals


Click here for the Academic Program’s reading order for the papal encyclicals.


Encyclicals by Pope Pius XII (1939 – 1958)

Anni Sacri – On a Program for Combatting Atheistic Propaganda Throughout the World

Mediator Dei – On the Sacred Liturgy


Encyclicals by Pope Pius XI (1922 – 1939)

Divini Redemptoris – On Atheistic Communism

Miserentissimus Redemptor – On Reparation to the Sacred Heart

Mortalium Animos – On Religious Unity

Quadragesimo Anno – On Reconstruction of the Social Order

Quas Primas – On the Feast of Christ the King


Encyclicals by Pope St. Pius X (1903 – 1914)

Acerbo Nimis – On Teaching Christian Doctrine

E Supremi – On the Restoration of All Things in Christ

Lamentabili Sane – Syllabus Condemning the Errors of the Modernists

Notre Charge Apostolique – Our Apostolic Mandate

Pascendi Dominici Gregis – On Modernism

The Oath Against Modernism


Encyclicals by Pope Leo XIII (1878 – 1903)

Aeterni Patris – On the Restoration of Christian Philosophy

Exeunte Iam Anno – On the Right Ordering of Christian Life

Diuturnum – On the Origin of Civil Power

Humanum Genus – On Freemasonry

Immortale Dei – On the Christian Constitution of States

Inscrutabili Dei Consilio – On the Evils of Society

Libertas – On the Nature of True Liberty

Quod Apostolici Muneris – On Socialism

Rerum Novarum – On Capital and Labor


Encyclicals by Pope Benedict XIV (1740 – 1758)

Vix Pervenit – On Usury and Other Dishonest Profit

A Quo Primum – On Jews and Christians Living in the Same Place


Encyclicals by Pope Gregory X (1271 – 1276)

Papal Protection of the Jews