
Catholicism, also known as Roman Catholicism, is the largest branch of Christianity, with 1.27 to 1.41 billion baptised Catholics worldwide as of 2025. The word 'Catholic' comes from the ancient Greek adjective 'katholikos', meaning 'universal'. The term was first used by Ignatius of Antioch in his Letter to the Smyrnaeans in 110 AD. The Catholic Church teaches that it is the one true church founded by Jesus Christ, and that its bishops are the successors of Christ's apostles. Catholics belong to a Christ-centred faith community that views Jesus Christ as the foundation. They believe in God, who is their loving Father and creator, and in the Holy Spirit, which was given by Jesus to the Church at Pentecost. The Catholic Church celebrates seven sacraments, including baptism, the Eucharist, and confirmation.
| Characteristics | Values |
|---|---|
| Largest Christian church | 1.27 to 1.41 billion baptised Catholics worldwide |
| One of the world's oldest and largest international institutions | 24 autonomous churches, including the Latin Church and 23 Eastern Catholic Churches |
| Chief pastor is the pope, who is the bishop of Rome | 3,500 dioceses and eparchies around the world, overseen by bishops |
| Core beliefs are found in the Nicene Creed | The Catholic Church teaches that it is the one, holy, catholic and apostolic church founded by Jesus Christ in his Great Commission |
| Practises the original Christian faith taught by the apostles | The Virgin Mary is venerated as the Mother of God and Queen of Heaven |
| The Eucharist is the principal one of seven sacraments | The sacramental bread and wine become the body and blood of Christ |
| Unity, sanctity, and apostolicity are considered one of the Four Marks of the Church | |
| The word 'Catholic' is derived from the Greek 'katholikos', meaning 'universal' | |
| The term 'Catholic' was first used by Ignatius of Antioch in his Letter to the Smyrnaeans (circa 110 AD) |
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Catholic Church
The Catholic Church, also known as the Roman Catholic Church, is the largest Christian church, with 1.27 to 1.41 billion baptised members worldwide as of 2025. It is one of the world's oldest and largest international institutions and has played a significant role in the history and development of Western civilisation. The Catholic Church is led by the pope, who serves as the bishop of Rome and is considered the chief pastor and successor of Saint Peter.
The term "Catholic" is derived from the ancient Greek adjective "katholikos," meaning "universal." In the context of Christian ecclesiology, it refers to the belief in the universality of the church founded by Jesus Christ and the apostles. The Catholic Church maintains that it practises the original Christian faith taught by the apostles and preserved through scripture and sacred tradition. It consists of 24 autonomous churches, including the Latin Church and 23 Eastern Catholic Churches, each overseen by bishops.
The Catholic Church celebrates seven sacraments, with the Eucharist as the principal one. Through consecration by a priest, the sacramental bread and wine are believed to become the body and blood of Christ. The Virgin Mary is venerated as the Mother of God and Queen of Heaven, with doctrines such as her Immaculate Conception, perpetual virginity, and assumption into heaven.
Catholics belong to a Christ-centred faith community that views Jesus Christ as the foundation of their beliefs. They recognise God as their loving Father and creator and believe in the divinity of Jesus Christ, his death, and resurrection, offering the gift of eternal life. Catholics strive to follow Jesus' teachings, including loving God and others, practising forgiveness and mercy, and caring for the needy. They also emphasise the importance of prayer and reconciliation in their spiritual lives.
The Catholic Church has been criticised in recent times for its teachings on sexuality, its stance against ordaining women, and its handling of sexual abuse cases within the clergy. Despite these controversies, it remains a significant religious force globally, with a vast number of adherents and a rich history that has shaped Western civilisation.
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Catholic Christianity's history
The Catholic Church, also known as the Roman Catholic Church, is the largest Christian church in the world, with 1.27 to 1.41 billion baptised Catholics worldwide as of 2025. It is among the world's oldest and largest international institutions and has played a prominent role in the history and development of Western civilisation. The Catholic Church teaches that its public ministry began on Pentecost, occurring fifty days after Christ is believed to have resurrected. At Pentecost, the apostles are believed to have received the Holy Spirit, preparing them for their mission in leading the church.
The word "Catholic" comes from the ancient Greek adjective "katholikos", meaning "universal". The first known use of the term was by Ignatius of Antioch in his Letter to the Smyrnaeans (circa 107 AD). In the context of Christian ecclesiology, it has a rich history and several usages. The term "Catholic" is used to refer to the Catholic Church in the Catechism of the Catholic Church (1990) and the Code of Canon Law (1983), as well as in the documents of the Second Vatican Council (1962-1965), the First Vatican Council (1869-1870), and numerous other official documents.
The history of the Catholic Church is a long and complex one, dating back to the early Christian community established by the Disciples of Jesus. The Church considers its bishops to be the successors to Jesus's apostles and the Church's leader, the Bishop of Rome (also known as the Pope), to be the sole successor to Saint Peter, who was appointed by Jesus as the head of the Church. By the end of the 2nd century, bishops began congregating in regional synods to resolve doctrinal and administrative issues, and by the 3rd century, the bishop of Rome began to act as a court of appeals for problems that other bishops could not resolve.
The Catholic Church has had a significant influence on Western civilisation, from Late Antiquity to the modern age. It was the primary sponsor of Romanesque, Gothic, Renaissance, Mannerist, and Baroque styles in art, architecture, and music. The Church has also played a role in the development of values, ideas, science, laws, and institutions that shape Western civilisation.
In the first thousand years of Catholic history, different varieties of Christianity developed in the Western and Eastern Christian areas of Europe, Asia, and Africa. The East-West Schism of 1054 divided the Catholic Church and the Eastern Orthodox Church, primarily over the authority of the Pope. Despite these divisions, the Catholic Church has remained a significant force in the world, with approximately 1.3 billion followers worldwide.
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Catholic beliefs and practices
Catholicism, also known as Roman Catholicism, is the largest branch of Christianity, with 1.27 to 1.41 billion baptised Catholics worldwide as of 2025. The Catholic Church teaches that it is the one, holy, catholic and apostolic church founded by Jesus Christ. The word 'catholic' comes from the ancient Greek adjective 'katholikos', meaning 'universal'.
Catholics belong to a Christ-centred faith community that views Jesus Christ as the foundation. They believe in God, who is their loving Father and creator, and that God's love is limitless. They believe that God sent his son, Jesus Christ, who suffered, died, and rose from the dead, to save them and offer them the gift of eternal life. Catholics are called to care for one another and to use their unique gifts and talents for the good of the community and the world.
Catholics worship and praise God by living a sacramental life. They recognise the need for forgiveness and see the sacrament of reconciliation as a means to receive this gift of forgiveness. They believe that their sins harm the community and that the sacramental gift of reconciliation helps heal their relationships with others, the community, and God.
Catholics also believe in the Holy Spirit and its powerful presence in the Church today. The Spirit, given by Jesus to the Church at Pentecost, enables the Lord to continue to be present today and to continue his saving mission. The Spirit imparts wisdom and knowledge and gives people their various spiritual gifts, which are found in the Bible. Catholics are called to recognise and share these gifts with the community.
The Catholic Church celebrates seven sacraments: baptism, the Eucharist, confirmation, reconciliation (confession), marriage, anointing of the sick, and holy orders. The Eucharist is the principal one, celebrated liturgically in the Mass. Through consecration by a priest, the sacramental bread and wine are believed to become the body and blood of Christ. The Virgin Mary is venerated as the Mother of God and Queen of Heaven, and she is honoured in dogmas such as the Immaculate Conception, perpetual virginity, and assumption into heaven.
Catholics are committed to the protection of all life, from the moment of conception until natural death. They strive to respect the dignity of every human being and to eliminate prejudice, oppression, poverty, violence, and injustice.
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Catholic branches
The Catholic Church, also known as the Roman Catholic Church, is the largest Christian church, with 1.27 to 1.41 billion baptised Catholics worldwide as of 2025. It is among the world's oldest and largest international institutions and has played a prominent role in the history and development of Western civilisation. The Catholic Church consists of 24 autonomous churches, including the Latin Church and 23 Eastern Catholic Churches, which comprise almost 3,500 dioceses and eparchies around the world. The pope, who is the bishop of Rome, is the chief pastor of the church.
The term "Catholic" comes from the ancient Greek adjective "katholikos", meaning "universal". The first known use of "Catholic" was by the church father Ignatius of Antioch in his Letter to the Smyrnaeans (circa 110 AD). In the context of Christian ecclesiology, it has a rich history and several usages. The word in English can mean either "of the Catholic faith" or "relating to the historic doctrine and practice of the Western Church".
Roman Catholicism is the largest of the three major branches of Christianity. Thus, all Roman Catholics are Christian, but not all Christians are Roman Catholic. Of the estimated 2.5 billion Christians in the world, about 1.3 billion are Roman Catholics. Broadly, Roman Catholicism differs from other Christian churches and denominations in its beliefs about the sacraments, the roles of the Bible and tradition, the importance of the Virgin Mary and the saints, and the papacy. Roman Catholicism celebrates seven sacraments: baptism, the Eucharist, confirmation, reconciliation (confession), marriage, anointing of the sick, and holy orders.
The Eastern Catholic Churches, which have a combined membership of approximately 18 million, represent a body of Eastern Christians who returned or remained in communion with the pope during or following the East-West Schism of 1054 due to a variety of historical circumstances. In the 16th century, the Reformation led to the formation of separate Protestant groups and the Counter-Reformation. From the late 20th century, the Catholic Church has been criticised for its teachings on sexuality, its doctrine against ordaining women, and its handling of sexual abuse committed by clergy.
The Anglicans, or "Church of England", separated from the Roman Catholic Church for political, not theological reasons; thus, "Anglo-Catholic" beliefs and practices are similar to Roman Catholics, but Anglicans do not acknowledge the leadership role of the Bishop of Rome (the "Pope").
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Catholic sacraments
Catholicism is the largest of the three major branches of Christianity, with 1.27 to 1.41 billion baptised Catholics worldwide as of 2025. The Catholic Church, also known as the Roman Catholic Church, is one of the world's oldest and largest international institutions and has played a prominent role in the history and development of Western civilisation. The Church consists of 24 autonomous churches, including the Latin Church and 23 Eastern Catholic Churches, comprising almost 3,500 dioceses and eparchies around the world. The pope, who is the bishop of Rome, is the chief pastor of the church.
The sacraments are a key and essential part of the Catholic faith. There are seven sacraments:
- Baptism: This is the first and basic sacrament of Christian initiation, bringing sanctifying grace to the person being baptised. In the Latin Church, baptism is usually conferred by pouring water three times on the recipient's head while reciting the baptismal formula: "I baptize you in the name of the Father and of the Son and of the Holy Spirit." In the Eastern Catholic Churches of Byzantine Rite, immersion or submersion is used, and sprinkling is accepted as valid provided that the water flows over the skin.
- Confirmation: This is the second sacrament of initiation, which "confirms" a baptised person in their faith. It includes the laying on of hands in prayer and blessing and the anointing of the forehead with holy oil.
- Eucharist or Holy Communion: This is the third sacrament of initiation and the central rite of Catholic worship. It is the consecrated bread and wine, which are believed to be transubstantiated into the body and blood of Christ. It is shared with the congregation as a sacred meal, reflecting Christ's Last Supper with his disciples.
- Reconciliation or Confession: This sacrament is an opportunity for self-reflection and renewal, where a person confesses their sins to a priest and obtains pardon from God. It is meant to bring the sinner back into communion with God and the Church.
- Anointing of the Sick: This is one of the sacraments of healing.
- Holy Orders: This is one of the sacraments of service.
- Matrimony: This is another sacrament of service.
The sacraments are seen as mystical channels of divine grace, instituted by Christ. They are often classified into three categories: the sacraments of initiation, healing, and service. Each sacrament is celebrated with a visible rite, which reflects the invisible, spiritual essence of the sacrament. Some sacraments, like baptism, confirmation, marriage, and ordination, are generally received only once, while others, like the Eucharist and reconciliation, are encouraged to be participated in frequently. The efficacy of the sacraments is believed to come from God, and their power is held to be independent of the celebrant or recipient.
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Frequently asked questions
Catholic Christianity, or Catholicism, is the largest of the three major branches of Christianity, with 1.27 to 1.41 billion baptised Catholics worldwide. The word 'Catholic' comes from the Greek 'katholikos', meaning 'universal'. The Catholic Church teaches that it is the one true church founded by Jesus Christ and led by the Pope, the bishop of Rome.
The core beliefs of Catholic Christianity are found in the Nicene Creed. Catholics believe in God, who is their loving Father and creator, and in the divinity of Jesus Christ, the son of God. They believe that God sent his son, Jesus Christ, to die for their sins and offer them eternal life. Catholics also believe in the Holy Spirit, which was given to the Church at Pentecost and continues to be present today.
The sacraments are a key part of Catholic faith. There are seven sacraments: baptism, the Eucharist, confirmation, reconciliation (confession), marriage, anointing of the sick, and holy orders. The Eucharist is the principal sacrament, celebrated liturgically in the Mass, and believed to be the real body and blood of Christ.











































