John Calvin was a French theologian and pastor who was a major figure in the Protestant Reformation. He is best known for his teachings on predestination and his Institutes of the Christian Religion, which is still considered a cornerstone of Reformed theology. Calvinists, or followers of Calvinism, are those who adhere to the teachings of Calvin. Calvinism is a major branch of Protestantism and is especially popular in Switzerland, where Calvinism was introduced in the 16th century. Calvin's teachings have had a major influence on the religious and political landscape of Switzerland, and Calvinists remain a major religious group in the country.
