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Unification of Italy

1848–1871

From 1848 to 1871, wars, diplomacy, plebiscites, and parliamentary politics combined to form a united Italian state from a peninsula divided among several governments.

A civic and military procession in Turin during Italian unification
Reconstruction note: This educational reconstruction is not a primary-source image of the event.
Period
1848–1871
Kind
Treaty
Regions
Europe
Keywords
Unification of Italy · Risorgimento · Kingdom of Italy · treaty · modern · europe

Follow the story · Four stages

  1. Background

    Foreign influence and political division met competing projects: Mazzini’s national movement, Cavour’s diplomacy, and institutional reform in the Kingdom of Sardinia each offered a different route to unity.

    • A peninsula divided among states
    • Constitutional and national movements in 1848
    • Urban citizens and political reform
    Citizens reading broadsides in Turin during the unrest of 1848
  2. Course

    The 1859 war, Garibaldi’s expedition through Sicily and southern Italy, and a series of plebiscites helped create a kingdom under Victor Emmanuel II. Parliament and diplomacy translated military gains into institutions.

    • Piedmontese diplomacy and military reform
    • Garibaldi’s Sicilian campaign
    • Integration through parliament and monarchy
    Red-shirt volunteers moving through the Sicilian hills
  3. Outcome

    The Kingdom of Italy was proclaimed on 17 March 1861. The annexation of Venetia and Rome brought the main territorial process to completion by 1871, while regional divisions and conflict with the papacy remained.

    • The Kingdom of Italy in 1861
    • Institutionalization of unified administration
    • Territorial consolidation with Rome
    Deputies gathered in Turin as the kingdom is proclaimed
  4. Historical significance

    The Risorgimento became a symbol of nation-state formation, but unification joined elite institution-building to popular mobilization rather than following one simple path. Regional inequality, church-state conflict, and national integration continued.

    • An example of nation-state formation
    • The combination of civic, diplomatic, and military action
    • The political foundations of modern Italy
    Nineteenth-century troops moving along the road toward Rome

Related events

  1. 1848

    The revolutions of 1848

    The revolutions of 1848: Movements for constitutions and national unity intensified across Italy, opening a new phase of the Risorgimento.

    Movements for constitutions and national unity intensified across Italy, opening a new phase of the Risorgimento.

  2. 1852

    Piedmontese leadership

    Piedmontese leadership: The Kingdom of Sardinia took a central role through diplomacy, military reform, and parliamentary politics.

    The Kingdom of Sardinia took a central role through diplomacy, military reform, and parliamentary politics.

  3. 1860

    Garibaldi’s southern campaign

    Garibaldi’s southern campaign: Garibaldi’s Expedition of the Thousand moved from Sicily into southern Italy and changed the balance of unification.

    Garibaldi’s Expedition of the Thousand moved from Sicily into southern Italy and changed the balance of unification.

  4. 1861

    The Kingdom of Italy is proclaimed

    Current event

    The Kingdom of Italy is proclaimed: In 1861, the Kingdom of Italy was proclaimed under King Victor Emmanuel II.

    In 1861, the Kingdom of Italy was proclaimed under King Victor Emmanuel II.

  5. 1870

    The annexation of Rome

    The annexation of Rome: The annexation of Rome consolidated the kingdom’s territory, and the capital moved there in 1871.

    The annexation of Rome consolidated the kingdom’s territory, and the capital moved there in 1871.

Sources