The Protestant Reformation began on October 31, 1517, when Martin Luther nailed his 95 Theses to the door of the Castle Church in Wittenberg, Germany, challenging Catholic practices like indulgences. This event sparked a transformative religious, political, and cultural upheaval across Europe, lasting through much of the 16th century and leading to Protestant denominations. While precursors like John Wycliffe in 1382 and Jan Hus in 1415 laid groundwork, Luther's stand marked the official start.

Key Timeline

  • 1382 : John Wycliffe translates the Bible into Middle English, earning the title "Morning Star" of the Reformation for promoting scripture accessibility.
  • 1415 : Jan Hus, influenced by Wycliffe, is burned at the stake for criticizing Catholic doctrines, inspiring later reformers.
  • 1517 : Martin Luther posts the 95 Theses, igniting protests against corruption in the Roman Catholic Church.
  • 1518-1519 : Luther debates at Heidelberg and Leipzig; Charles V is elected Holy Roman Emperor amid rising tensions.
  • 1521 : Luther refuses to recant at the Diet of Worms; he's declared an outlaw but protected by Frederick the Wise.
  • 1530s-1550s : Reformation spreads with Zwingli, Calvin; key events include the Augsburg Confession (1530) and Council of Trent (1545-1563) as Catholic response.
  • 1555 : Peace of Augsburg allows German princes to choose Lutheranism or Catholicism for their realms.

Major Figures

Martin Luther led the charge, emphasizing salvation by faith alone and scripture's authority over church tradition. John Calvin advanced Reformed theology in Geneva, influencing Presbyterianism, while Huldrych Zwingli pushed reforms in Switzerland. Henry VIII's break from Rome in 1534 created Anglicanism, blending Protestant and Catholic elements.

Lasting Impact

The Reformation fractured Western Christianity, fostering literacy via Bible translations and weakening papal power, which fueled the Renaissance and Enlightenment. It prompted the Catholic Counter-Reformation, modernizing the Church while sparking wars like the Thirty Years' War (1618-1648). Today, over 900 million Protestants trace roots here, shaping global faith and society.

TL;DR : Sparked October 31, 1517, by Luther's 95 Theses; peaked 16th century with profound religious splits and reforms.

Information gathered from public forums or data available on the internet and portrayed here.