John XXIII – The Papal Library

Encyclicals of Pope John XXIII

Ad Petri Cathedram
Truth, Unity and Peace
June 29, 1959

Aeterna Dei Sapientia
Commemorating the Fifteenth Centennial of the Death of Pope St. Leo I: The See of Peter as the Center of Christian Unity
November 11, 1961

Grata Recordatio
on the Rosary: Prayer for the Church, Missions, International and Social Problems
September 26, 1959

Mater et Magistra
Christianity and Social Progress
May 15, 1961

Pacem In Terris
on the Establishing Universal Peace in Truth, Justice, Charity, and Liberty
April 11, 1963

Paenitentiam Agere
on the Need for the Practice of Interior and Exterior Penance
July 1, 1962

Princeps Pastorum
on the Missions, Native Clergy, and Lay Participation
November 28, 1959

Sacerdotii Nostri Primordia
on St. John Vianney
August 1, 1959

 

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