Introduction The Catholic Church (Latin: Ecclesia Catholica), also called the Roman Catholic Church, is the largest Christian church, with an estimated 1.28 to 1.41 billion baptized members worldwide as of 2026. It consists of 24 autonomous (sui iuris) churches—the Latin Church and 23 Eastern Catholic Churches—organized into nearly 3,500 dioceses and eparchies governed by bishops. Throughout history, the church has had a large role in the development of Western civilization. Catholic communities are present worldwide through missions, immigration, and conversions. The majority of Catholics live in the Global South, reflecting rapid demographic growth in Africa, Asia, and Latin America, as well as secularization in parts of Europe and North America. Catholic doctrine is rooted in the Nicene Creed and holds that the church is the "one, holy, catholic and apostolic Church" founded by Jesus Christ. It teaches that bishops are the successors of the apostles and that the pope—the bishop of Rome—is the successor of Saint Peter the Apostle, entrusted with a unique and primary pastoral role. The pope serves as the head of the church; the Diocese of Rome forms his local jurisdiction, while the Holy See serves as the church's central governing authority through the Roman Curia. Apostolic teaching is understood to be transmitted through Scripture and sacred tradition, interpreted by the magisterium, the church's teaching authority. Catholic liturgical life includes the Roman Rite, other rites of the Latin Church, and the liturgical traditions of the Eastern Catholic Churches. Religious orders, monastic communities, and lay movements contribute to a wide range of theological and devotional expressions within Catholicism globally. Among the church's seven sacraments, the Eucharist is seen as the source and summit of the Christian life and is celebrated in the Mass. Catholics believe that through consecration by a priest, the bread and wine become the body and blood of Christ. The Virgin Mary is venerated as the Mother of God and honored through dogmas such as the Immaculate Conception, perpetual virginity, and Assumption, including devotional practices. Catholic social teaching emphasizes care for the poor, the sick, and the marginalized. The church operates tens of thousands of educational, medical, and charitable institutions worldwide, becoming the largest non-governmental provider of education and health care. (Full article...) Selected article  The First Council of Nicaea, held in Nicaea in Bithynia (present-day İznik in Turkey), convoked by the Roman Emperor Constantine I in 325, was the first Ecumenical council of the Christian Church, and most significantly resulted in the first uniform Christian doctrine, called the Nicene Creed. With the creation of the creed, a precedent was established for subsequent 'general (ecumenical) councils of Bishops' (Synods) to create statements of belief and canons of doctrinal orthodoxy— the intent being to define unity of beliefs for the whole of Christendom.The purpose of the council was to resolve disagreements in the Church of Alexandria over the nature of Jesus in relationship to the Father; in particular, whether Jesus was of the same substance as God the Father or merely of similar substance. St. Alexander of Alexandria and Athanasius took the first position; the popular presbyter Arius, from whom the term Arian controversy comes, took the second.
Selected image  The Seven Sacraments by Rogier van der Weyden (ca.1448) "The seven sacraments, Baptism, Confirmation or Chrismation, Eucharist, Penance, Anointing of the Sick, Holy Orders, and Matrimony, instituted by Christ and entrusted to the Church, are efficacious signs of grace perceptible to the senses. They assist individuals in their spiritual progress and growth in holiness. Selected biography  Augustine of Canterbury (died May 26, 604) was a Benedictine monk who became the first Archbishop of Canterbury in 598. He is considered the "Apostle to the English", a founder of the English Church, and a patron of England.Augustine was the prior of a monastery in Rome when Pope Gregory the Great chose him in 595 to lead a mission to Britain to convert the pagan King Æthelberht of Kent to Christianity. Kent was probably chosen because it was near the Christian kingdoms in Gaul, and because Æthelberht had married a Christian princess, Bertha, daughter of Charibert, the King of Paris, who was expected to exert some influence over her husband. Although the missionaries considered turning back before they reached Kent, Gregory urged them on, and in 597 Augustine landed on the Isle of Thanet and proceeded to Æthelberht's main town of Canterbury.
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