Christianity is a monotheistic religion centered on the life and teachings of Jesus Christ, whom Christians believe to be the Son of God and the Savior of humanity. Originating in the 1st century CE, it has grown to become the world's largest religion, encompassing a diverse range of denominations and traditions.

Core beliefs include:

• The Trinity: God exists as three persons in one essence—Father, Son (Jesus Christ), and Holy Spirit.

• Salvation: Through Jesus' death and resurrection, believers are offered forgiveness of sins and eternal life.

• The Bible: Sacred scripture comprising the Old and New Testaments, guiding faith and practice.

• Sacraments: Rituals such as baptism and communion that signify grace and commitment.

Christianity emphasizes love, compassion, and service to others, encouraging followers to live according to Jesus' teachings.