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Luther’s theses ignite a wider reform dispute

1517 CE

Martin Luther’s challenge to indulgence practices became a catalyst for a broader conflict over religious authority and salvation. The controversy expanded beyond the questions with which it began. Reform movements and responses developed into enduring divisions across western Christianity rather than a single unified alternative.

Why it matters

Luther’s intervention provides a starting point for understanding Protestant traditions and the disputes over scripture, faith, and church authority that shaped their formation.

About the date

The theses circulated in 1517; the familiar door-posting story is debated.

Wittenberg

University city associated with Luther’s theses and reform activity.

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