Protestant Doctrine: Calvinism Calvinism is a major branch of orthodox Protestantism that emerged in the sixteenth century, primarily developed by the French theologian John Calvin. Mike October 26, 2025 Share this: Share on Facebook (Opens in new window) Facebook Share on X (Opens in new window) X Print (Opens in new window) Print Email a link to a friend (Opens in new window) Email Calvinism is a major branch of orthodox Protestantism that emerged in the sixteenth century, primarily developed by the French theologian John Calvin. Like this:Like Loading... Post navigation Previous: The 39 Articles – ExpandedNext: External evidence for Jesus Related Stories On Hermeneutics with Jared Ebert Mike April 14, 2026 0 True Repentance Mike April 13, 2026 0 Half of all Americans say they have read at least half the Bible, poll says Mike April 13, 2026 0