Historical panorama of divisions and attempts to recompose the unity of Christians; The World Council of Churches and the modern ecumenical movement; Vatican II and the Catholic principles of ecumenism; Who are our brothers and sisters in the Christian faith?; Ecumenical Directory; Models of unity; Theology and ecumenism and inter-religious relations.
VATICAN COUNCIL II, Decree on Ecumenism Unitatis Redintegratio, 21 Nov. 1964. JOHN PAUL II, Encyclical Letter Ut Unum Sint, 25 May 1995. BENEDICT XVI, Homily for the Mass of Inauguration of the Pontificate, 24 Apr. 2005. FRANCIS, Evangelii Gaudium, 24 Nov. 2013, nn.244-246. PONTIFICAL COUNCIL FOR PROMOTING CHRISTIAN UNITY, Directory for the Application of the Norms and Principles on Ecumenism, 25 March 1993.