Church FathersThe Church Fathers, Early Church Fathers, Christian Fathers, or Fathers of the Church were ancient and influential Christian theologians and writers who established the intellectual and doctrinal foundations of Christianity. The historical period in which they worked became known as the Patristic Era and spans approximately from the late 1st to mid-8th centuries, flourishing in particular during the 4th and 5th centuries, when Christianity was in the process of establishing itself as the state church of the Roman Empire.
Doctor of the ChurchDoctor of the Church (Latin: doctor "teacher"), also referred to as Doctor of the Universal Church (Latin: Doctor Ecclesiae Universalis), is a title given by the Catholic Church to saints recognized as having made a significant contribution to theology or doctrine through their research, study, or writing. But more importantly, a Doctor of the Church is one who has been officially recognized by the Roman Catholic Church for having lived a very holy, humble, self-mortifying, sacrificial life, and having been a stout defender of orthodoxy.
Code of Canons of the Eastern ChurchesThe Code of Canons of the Eastern Churches (CCEC; Codex Canonum Ecclesiarum Orientalium, abbreviated CCEO) is the title of the 1990 work which is a codification of the common portions of the canon law for the 23 Eastern Catholic Churches in the Catholic Church. It is divided into 30 titles and has a total of 1546 canons. The code entered into force in 1991. The western Latin Church is governed by its own particular code, the 1983 Code of Canon Law.
Latin liturgical ritesLatin liturgical rites, or Western liturgical rites, is a large family of liturgical rites and uses of public worship employed by the Latin Church, the largest particular church sui iuris of the Catholic Church, that originated in Europe where the Latin language once dominated. Its language is now known as Ecclesiastical Latin. The most used rite is the Roman Rite. The Latin rites were for many centuries no less numerous than the modern Eastern Catholic liturgical rites. The number of Latin rites and uses is now much reduced.
NovatianismNovatianism or Novationism was an early Christian sect devoted to the theologian Novatian ( 200–258) that held a strict view that refused readmission to communion of lapsi (those baptized Christians who had denied their faith or performed the formalities of a ritual sacrifice to the pagan gods under the pressures of the persecution sanctioned by Emperor Decius in AD 250). The Church of Rome declared the Novatianists heretical following the letters of Saint Cyprian of Carthage and Ambrose wrote against them.
Catholic Church and ecumenismThe 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.
Catholic liturgyIn the Catholic Church, liturgy is divine worship, the proclamation of the Gospel, and active charity. Catholic liturgies are broadly categorized as the Latin liturgical rites of the Latin Church and the Eastern Catholic liturgies of the Eastern Catholic Churches. As explained in greater detail in the Catechism of the Catholic Church: Liturgy is an "action" of the whole Christ (Christus totus).
Ecclesiastical LatinEcclesiastical Latin, also called Church Latin or Liturgical Latin, is a form of Latin developed to discuss Christian thought in Late Antiquity and used in Christian liturgy, theology, and church administration down to the present day, especially in the Catholic Church. It includes words from Vulgar Latin and Classical Latin (as well as Greek and Hebrew) re-purposed with Christian meaning.
Sui iurisSui iuris (ˈsu:aɪ_ˈdʒʊərɪs or ˈsu:i_ˈjurɪs) also spelled sui juris, is a Latin phrase that literally means "of one's own right". It is used in both secular law and the Catholic Church's canon law. The term church sui iuris is used in the Catholic Code of Canons of the Eastern Churches (CCEO) to denote the autonomous churches in Catholic communion. The Catholic Church consists of 24 churches, including the Latin Church and 23 Eastern Catholic churches.
Papal primacyPapal primacy, also known as the primacy of the bishop of Rome, is a ecclesiological doctrine in the Catholic Church concerning the respect and authority that is due to the pope from other bishops and their episcopal sees. While the doctrine is accepted at a fundamental level by both the Catholic Church and Eastern Orthodox Church, the two disagree on the nature of primacy. English academic and Catholic priest Aidan Nichols wrote that "at root, only one issue of substance divides the Eastern Orthodox and the Catholic Churches, and that is the issue of the primacy.
