Germany as a unified nation-state was born on January 18, 1871, in the Hall of Mirrors at the Palace of Versailles—a deliberate humiliation of defeated France.
Otto von Bismarck, Minister-President of Prussia, proclaimed the German Empire (Deutsches Reich) with King Wilhelm I of Prussia as Kaiser (Emperor). The ceremony occurred ten days after the fall of Paris in the Franco-Prussian War.
Kleindeutsche Lösung ("Small German Solution"): Prussia + 21 other monarchies + 3 free cities (Hamburg, Bremen, Lübeck). Excluded: Austria (Grossdeutsche Lösung rejected), German-speaking Switzerland, Alsace-Lorraine (annexed from France).
Ended centuries of fragmentation (Holy Roman Empire dissolved 1806; 39-state German Confederation 1815–66). Created Europe's strongest industrial/military power—altering continental balance irreversibly. The 1871 Empire lasted until 1918; its boundaries, institutions, and unresolved tensions shaped 20th-century catastrophes.