Latinization refers to the introduction of Roman Catholic elements of theology or praxis into non-western traditions. In its broadest sense, Latinization may include language, music, decorative arts, architecture, and even world view. In theology, it may simply refer to an emphasis on the writings of the Latin Fathers of the Church, who, writing before the Great Schism are technically Orthodox. However, often the term is used pejoratively to describe changes imposed by Rome upon the so-called Eastern Rite Catholic churches. In these instances, when formerly Orthodox jurisdictions came under the authority of Rome, they were required to accept certain canonical and theological changes. The most notable of these are possibly the requirement of a celibate priesthood and the insertion of the Filioque clause into the Nicene Creed.