Home > Christianity > Denominations > Catholicism > Saints > J > Blessed John XXIII > Works > Ad Petri Cathedram
Ad Petri Cathedramhttp://www.ewtn.com/library/ENCYC/I23PETRI.HTM
On Truth, Unity and Peace, in a Spirit of Charity. John XXIII's first encyclical. Promulgated 29 June, 1959.
Submitted in section: Christianity: Denominations: Catholicism: Saints: J: Blessed John XXIII: Works: Ad Petri Cathedram