section_path: Liturgy
section_name: Liturgy
paragraph_text: Liturgy
  
  Among the 24 autonomous (sui iuris) churches, numerous liturgical and other traditions exist, called rites, which reflect historical and cultural diversity rather than differences in belief. In the definition of the Code of Canons of the Eastern Churches, "a rite is the liturgical, theological, spiritual, and disciplinary patrimony, culture and circumstances of history of a distinct people, by which its own manner of living the faith is manifested in each Church sui iuris ".
  
  The liturgy of the sacrament of the Eucharist, called the Mass in the West and Divine Liturgy or other names in the East, is the principal liturgy of the Catholic Church. This is because it is considered the propitiatory sacrifice of Christ himself. Its most widely used form is that of the Roman Rite as promulgated by Pope Paul VI in 1969 (see Missale Romanum) and revised by Pope John Paul II in 2002 (see Liturgiam Authenticam). In certain circumstances, the 1962 form of the Roman Rite remains authorized in the Latin Church. Eastern Catholic Churches have their own rites. The liturgies of the Eucharist and the other sacraments vary from rite to rite, reflecting different theological emphases.