How was the ideology of liberalism allied with national unity in early 19th century in Europe

As an ideology and in practice liberalism became the preeminent reform movement in Europe during the 19th century. Its fortunes, however, varied with the historical conditions in each country—the strength of the crown, the élan of the aristocracy, the pace of industrialization, and the circumstances of national unification. The national character of a liberal movement could even be affected by religion. Liberalism in Roman Catholic countries such as France, Italy, and Spain, for example, tended to acquire anticlerical overtones, and liberals in those countries tended to favour legislation restricting the civil authority and political power of the Catholic clergy.

In Great Britain the Whigs had evolved by the mid-19th century into the Liberal Party, whose reformist programs became the model for liberal political parties throughout Europe. Liberals propelled the long campaign that abolished Britain’s slave trade in 1807 and slavery itself throughout the British dominions in 1833. The liberal project of broadening the franchise in Britain bore fruit in the Reform Bills of 1832, 1867, and 1884–85. The sweeping reforms achieved by Liberal Party governments led by William Gladstone for 14 years between 1868 and 1894 marked the apex of British liberalism.

William Ewart GladstoneCulver Pictures

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Liberalism in continental Europe often lacked the fortuitous combination of broad popular support and a powerful liberal party that it had in Britain. In France the Revolutionary and Napoleonic governments pursued liberal goals in their abolition of feudal privileges and their modernization of the decrepit institutions inherited from the ancien régime. After the Bourbon Restoration in 1815, however, French liberals were faced with the decades-long task of securing constitutional liberties and enlarging popular participation in government under a reestablished monarchy, goals not substantially achieved until the formation of the Third Republic in 1871.

Throughout Europe and in the Western Hemisphere, liberalism inspired nationalistic aspirations to the creation of unified, independent, constitutional states with their own parliaments and the rule of law. The most dramatic exponents of this liberal assault against authoritarian rule were the Founding Fathers of the United States, the statesman and revolutionary Simón Bolívar in South America, the leaders of the Risorgimento in Italy, and the nationalist reformer Lajos Kossuth in Hungary. But the failure of the Revolutions of 1848 highlighted the comparative weakness of liberalism on the Continent. Liberals’ inability to unify the German states in the mid-19th century was attributable in large part to the dominant role of a militarized Prussia and the reactionary influence of Austria. The liberal-inspired unification of Italy was delayed until the 1860s by the armies of Austria and of Napoleon III of France and by the opposition of the Vatican.

The United States presented a quite different situation, because there was neither a monarchy, an aristocracy, nor an established church against which liberalism could react. Indeed, liberalism was so well established in the United States’ constitutional structure, its political culture, and its jurisprudence that there was no distinct role for a liberal party to play, at least not until the 20th century.

In Europe, by contrast, liberalism was a transforming force throughout the 19th century. Industrialization and modernization, for which classical liberalism provided ideological justification, wrought great changes. The feudal system fell, a functionless aristocracy lost its privileges, and monarchs were challenged and curbed. Capitalism replaced the static economies of the Middle Ages, and the middle class was left free to employ its energies by expanding the means of production and vastly increasing the wealth of society. As liberals set about limiting the power of the monarchy, they converted the ideal of constitutional government, accountable to the people through the election of representatives, into a reality.