Catholic Church and ecumenism

Te Deum Ecuménico 2009 in the Metropolitan Cathedral of Santiago of Chile, featuring clergy of different Christian denominations

The Catholic Church has engaged in the modern ecumenical movement especially since the Second Vatican Council (1962–1965) and the issuing of the decree Unitatis redintegratio and the declaration Dignitatis humanae. It was at the Council that the Pontifical Council for Promoting Christian Unity was created. Those outside of the Catholic Church were categorised as heretics (in reference to Protestantism) or schismatics (as in the case of the Eastern Orthodox Church and Oriental Orthodox Churches), but in many contexts today, to avoid offence, the euphemism "separated brethren" is used.