Second Vatican Council
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The Second Ecumenical Council of the Vatican, commonly known as the Second Vatican Council or Vatican II, was the 21st and most recent ecumenical council of the Catholic Church. Wikipedia
Founder: Pope John XXIII
Date: 11 October 1962 – 8 December 1965
Accepted by: Catholic Church
Attendance: Up to 2,625
Topics: Complete unfinished task of Vatican I and ecumenical outreach to address needs of modern world