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.
Spirit of Vatican II
In an address at Milan Cathedral on 7 June 1963, before the opening of the papal conclave of 1963, papabile Cardinal Montini said of Pope John XXIII who had died four days earlier, "If we still wanted to fix our gaze on the tomb, now sealed, we could speak about his legacy which that tomb cannot contain, about the spirit which he infused into our era and which death cannot suffocate".