Calvinism, also known as Reformed Christianity, is a major branch of Protestantism that follows the theological tradition and forms of Christian practice set down by John Calvin and various other Reformation-era theologians. It emphasizes the sovereignty of God, predestination, and the authority of the Bible. Calvinism is not just a system of doctrine, but a broad religious tradition with certain shared views and points of emphasis. It is named after John Calvin, although he himself denounced the designation. The term "Calvinism" is often used to refer to the doctrine of divine predestination, which was explained from the Scriptures by Reformed theologians associated with John Calvin