Where were the Ninety-five Theses posted?

• A. Supposedly on the church door in Wittenberg, Germany, on October 31, 1517.
• B. On a notice board in Geneva.
• C. Inside the Vatican's library.
• D. On the door of Westminster Abbey.

Answer: (A)

The main idea here is how reformers started public debate. Martin Luther nailed or posted the Ninety-five Theses on the door of the All Saints’ Church (the Castle Church) in Wittenberg, Germany, on October 31, 1517. In that era, church doors served as public notice boards for university towns—an invitation to scholars to discuss proposed questions. By choosing a visible, communal spot, Luther aimed to spark open debate about practices like indulgences and church authority, which helped ignite the Protestant Reformation.

Other locations don’t fit the historical record: Geneva is tied to a later reform movement led by Calvin, the Vatican library is not a site associated with this act, and Westminster Abbey is in England and unrelated to Luther’s action.