Pope John XXIII

1958 - 1963

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

• On the Rosary
  Grata Recordatio
  September 26, 1959

• On the Missions
  Princeps Pastorum
  November 26, 1959

• Christianity and Social Progress
  Mater Et Magistra
  May 16, 1961

• On Saint Leo the Great
  Aeterna Dei Sapientia
  November 11 1961

• On the Need for Penance
  Paenitentiam Agere
  1 July 1, 1962

• Peace on Earth
  Pacem in Terris
  11 Apr 1963

• On Saint John Vianney
  Sacerdotii Nostri Primordia
  August 1, 1963