Second Vatican Council
The Second Ecumenical Council of the Vatican, commonly known as the or , addressed relations between the Catholic Church and the modern world. The council, through the Holy See, was formally opened under the pontificate of Pope John XXIII on 11 October 1962 and was closed under Pope Paul VI on the Solemnity of the Immaculate Conception on 8 December 1965.
Second Vatican Council
After adjournment on 8 December, work began on preparations for the sessions scheduled for 1963. These preparations, however, were halted upon the death of Pope John XXIII on 3 June 1963, since an ecumenical council is automatically interrupted and suspended upon the death of the Pope who convened it, until the next Pope orders the council to be continued or dissolved. Pope Paul VI was elected on 21 June 1963 and immediately announced that the Council would continue.