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.
Canon law of the Catholic Church
In the succeeding decades, some parts of the 1917 Code were retouched, especially under Pope Pius XII. In 1959, Pope John XXIII announced, together with his intention to call the Second Vatican Council a Synod of the Diocese of Rome, that the 1917 Code would be completely revised. In 1963, the commission appointed to undertake the task decided to delay the project until the Council had been concluded. After the Second Ecumenical Council of the Vatican (Vatican II) closed in 1965, it became apparent that the Code would need to be revised in light of the documents and theology of Vatican II. When work finally began, almost two decades of study and discussion on drafts of the various sections were needed before Pope John Paul II could promulgate the revised edition, which came into force on 27 November 1983, having been promulgated via the apostolic constitution "Sacrae Disciplinae Leges" of 25 January 1983. Containing 1752 canons, it is the law currently binding on the Latin Church.