The Revolutions of 1830 and 1848

The Congress of Vienna had tried to restore monarchy and squash nationalism after Napoleon, but it could not erase the ideas the French Revolution had unleashed. In 1830, a revolt in Paris toppled Charles X and installed the more liberal Louis-Philippe, and news of a king successfully overthrown encouraged uprisings in Belgium, Poland, and Italian states. But 1848 was bigger: economic crisis, poor harvests, and years of pent-up frustration with censorship and closed political systems pushed revolt into Paris, Vienna, Berlin, Budapest, and Milan within weeks of each other. Railroads and newspapers carried the news of each success fast enough that one capital's revolt became an example for the next.

Inside each capital, revolutionaries were rarely one group. Liberals wanted constitutions and elected legislatures. Nationalists wanted unified or independent nation-states. Urban workers wanted relief from unemployment and food prices. Together they could overwhelm a conservative government that had not expected simultaneous pressure from every direction. But once monarchs fled or made concessions, the coalition had no shared program left. Liberals often recoiled from worker demands for economic radicalism, and nationalist ambitions in multiethnic empires like Austria set one nationality against another. The Frankfurt Parliament captures this failure in miniature: German liberals spent months writing a constitution and debating borders while conservative armies regrouped, and when the assembly finally offered the imperial crown to Prussia's king, he refused it as a gift from revolutionaries rather than by divine right.

By 1850, almost every 1848 government had been rolled back, though not entirely erased, serfdom's end in Austria stuck, and the memory of failure reshaped nationalist strategy. Having watched elected assemblies talk themselves out of power, nationalists like Cavour and Bismarck concluded that unification would come from state power and armies, not popular revolution, setting up the top-down nation-building of the 1860s.