Unification of Italy — creation of the politically and administratively integrated nation of Italy (1815–1871)
The Risorgimento unified fragmented Italian peninsula states into the Kingdom of Italy by 1861, reshaping European political boundaries in the 19th century.
Key Facts
- Kingdom of Italy proclaimed
- 1861
- Rome designated capital
- 1871
- Capture of Rome
- 1870
- Annexation of Trento & Trieste
- 1918, end of World War I
- Unification anniversary
- 17 March
- Key figures
- Victor Emmanuel II, Cavour, Garibaldi, Mazzini
By the Numbers
Location
Cause → Event → Consequence
Rebellions in the 1820s and 1830s against the outcome of the Congress of Vienna fostered growing nationalist sentiment across the Italian peninsula. The Revolutions of 1848 further accelerated demands for political consolidation and liberation from Austrian and other foreign domination, creating pressure for unified statehood.
Between 1815 and 1871, the Risorgimento movement brought together various Italian peninsula states under the Kingdom of Sardinia, culminating in the 1861 proclamation of the Kingdom of Italy. Key figures including King Victor Emmanuel II, Count Cavour, Giuseppe Garibaldi, and Giuseppe Mazzini drove military campaigns and diplomatic efforts that progressively annexed territories, with Rome finally captured in 1870 and designated capital in 1871.
The creation of the Kingdom of Italy redrew the political map of Europe and ended centuries of fragmented rule on the peninsula. Nonetheless, many ethnic Italian-speakers in Trentino and Venezia Giulia remained outside Italian borders, fueling irredentism that persisted until the annexation of Trento and Trieste in 1918 following Italy's victory in World War I, an event many historians consider the movement's true culmination.