🧠Why This Topic is Important for UPSC? World History is frequently asked in GS1 Mains. Topics like the Unification of Germany, Italy, and Revolutions of 1848 are PYQ hotspots . It allows you to link ideologies, nationalism, diplomacy, and war — all favorite angles of UPSC examiners. 📜 Timeline of the Unification of Germany (1848–1871) ➡️ 1848 Revolutions : The revolutions across Europe, especially in the German Confederation, planted the seeds of nationalism. A Frankfurt Parliament attempted unification but failed due to internal divisions and lack of military power. ➡️ 1862: Entry of Bismarck – The Iron Chancellor Otto von Bismarck became the Prime Minister of Prussia . A master of Realpolitik , he believed in “blood and iron” — a strong army and strategic wars, not liberal ideologies, would unify Germany. ➡️ 1864: Danish War – Alliance with Austria Prussia and Austria fought Denmark and captured Schleswig and Holstein. It was Bismarck’s tactical move to p...