History of Protestantism

The historical development of Christian traditions that emerged from the sixteenth-century Reformation, including their later movements, institutions, and global expansion.

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Martin Luther: A German theologian whose challenge to indulgence preaching in 1517 helped initiate the Reformation. His protest against indulgences became an early catalyst for the movement.
Justification by faith: The Christian doctrine that people are justified before God through faith, rather than by earning salvation through works. Lutherans and other reformers made this doctrine central to their challenge to Catholic teaching.
Thirty Years' War: A series of European conflicts from 1618 to 1648, fought over political and religious divisions in the Holy Roman Empire. Confessional divisions contributed to a devastating war that transformed European political order.
Puritanism: A movement among English Protestants seeking further reform of the Church of England’s doctrine and worship. Puritan migration and political influence helped shape Protestant life in colonial North America.
Radical Reformation: Sixteenth-century movements that sought reforms beyond those adopted by Lutheran and Reformed churches, including Anabaptist traditions. Its communities challenge accounts that treat Protestant history as only a reform of established churches.
Ninety-five Theses: Martin Luther’s 1517 propositions criticizing the sale and theology of indulgences. This document marks the public beginning of Luther’s break with Catholic authorities.
Sola scriptura: The Protestant principle that Scripture is the church’s supreme authority for Christian doctrine. It shaped reformers’ disputes over church tradition and religious authority.
Peace of Westphalia: The 1648 treaties that ended the Thirty Years' War and reshaped political authority in central Europe. The settlement recognized additional Protestant confessions and constrained imperial religious control.
Methodism: A Protestant movement originating in eighteenth-century Britain, emphasizing disciplined devotion, preaching, and evangelism. Its revival networks and missions fueled Protestant growth across the British Empire and beyond.
Anabaptism: A Christian tradition arising during the Reformation that practices adult baptism and emphasizes voluntary church membership. Anabaptists raise questions about dissent, religious coercion, and the limits of magisterial reform.