AP® European History · Unit 2 · Topic 2.2
Luther and the Break with Rome
Luther's 1517 protest against indulgence sales grew into a doctrine, justification by faith alone, that stripped the church of its role as the required middleman between sinners and salvation.
The trigger was money. A friar named Johann Tetzel was selling indulgences in Saxony to fund the rebuilding of St. Peter's Basilica in Rome, promising buyers reduced punishment for sin in exchange for cash. The church had sold indulgences for centuries, but this campaign felt especially naked: a payment handed to a traveling salesman in Wittenberg financed a building project for a pope in Rome. Luther, an Augustinian monk and theology professor, posted his Ninety-Five Theses in 1517 attacking the practice, not meaning to split the church but to debate it.
The theology went deeper than outrage over money. Luther had come to believe in justification by faith alone: a person is saved by faith, not by accumulating good works or moving through the church's sacraments. That single idea gutted the whole system. If faith alone saved you, confession, penance, and indulgences were not necessary tools of salvation, and the clergy who administered them lost their monopoly on access to God. Rome could not let that stand. Luther was summoned to defend his views at the Diet of Worms in 1521, refused to recant, and was declared an outlaw. Friendly German princes hid him at Wartburg Castle, where he translated the New Testament into German.
What made this protest survive where Jan Hus and John Wycliffe's earlier challenges had not was the printing press. Their condemnations a century earlier could be contained; Luther's pamphlets outran the authorities sent to seize them, spreading his ideas across German-speaking Europe before Rome could respond.
Key terms
- Indulgence
- A payment to the church believed to reduce punishment for sin, the practice Luther's theses attacked.
- Justification by faith alone
- Luther's doctrine that faith, not good works or sacraments, is what saves a believer.
- Diet of Worms
- The 1521 imperial assembly where Luther refused to recant his views and was declared an outlaw.
- Ninety-Five Theses
- Luther's 1517 list of propositions challenging indulgence sales, posted at Wittenberg.
- Wartburg Castle
- The castle where sympathetic princes hid Luther after Worms, where he translated the New Testament into German.
Watch it explained
- How it worksWalk me through where an indulgence payment in Saxony actually ended up in Rome.
- How it worksHow does justification by faith alone knock out the whole ladder of sacraments and good works?
- How it worksShow me the sequence from the 95 Theses to Worms to Luther's protection at the Wartburg.
- Common mistakeWhy isn't Luther's break the first time anyone challenged papal authority?
Check yourself
End of topic.