AI-generated practice question — model-generated for extra practice, not a previous-year CBSE board question.
William I of Prussia was proclaimed German Emperor on 18 January 1871 in the Hall of Mirrors in the Palace of Versailles.
The answer requires two specific facts: the date (18 January 1871) and the place (Hall of Mirrors, Palace of Versailles). Both must be mentioned for full marks. The source passage states this directly, so no inference is needed.