AI-generated practice question — model-generated for extra practice, not a previous-year CBSE board question.
Otto von Bismarck was the Chief Minister of Prussia who played the central role in unifying Germany. On 18 January 1871, he gathered with German princes, army representatives, and Kaiser William I of Prussia at the Hall of Mirrors, Versailles, to proclaim the new German Empire. He used Prussian state power and military dominance to achieve unification.
Source: Chapter 1, Nationalism in Europe
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The question asks who Bismarck was (1 mark) and what he did (1 mark). Examiners expect: his designation (Chief Minister of Prussia), the key event (proclamation of German Empire, 1871, Hall of Mirrors, Versailles), and the role of Prussian dominance. Avoid lengthy detail about wars — that is not asked here and would waste words.