Special Celebrations

First Vatican Council

 Ecumenical Council   Vatican I 

• Pope Pius IX, Bull Æterni Patris Summoning the First Council of Vatican (1868.06.29)
• Pope Pius IX, Encyclical Arcano divinæ To all the bishops of the world, exhorting them to attend the First Vatican Council (1868.09.08)
• First Council of Vatican, Conciliar Constitution Dei filius “Dogmatic constitution on the Catholic faith” (1870.04.24)
• First Council of Vatican, Conciliar Constitution Pastor æternus “Dogmatic constitution on the Church of Christ, papal infallibility” (1870.07.18)
• Pope Pius IX, Encyclical Ordinem vestrum Lamenting that in some places the decisions of the First Vatican Council were opposed to (1871.10.27)