A common misconception places Rome as Italy's immediate capital upon unification. The historical sequence reveals a decade-long interim with two other capitals before Rome's capture.
| Period | Capital | Context |
|---|---|---|
| 1861–1865 | Turin | Capital of Kingdom of Sardinia-Piedmont; became first capital of unified Italy under Victor Emmanuel II |
| 1865–1871 | Florence | Moved by convention (September Convention, 1864) to distance government from French garrison in Rome |
| 1871–present | Rome | Captured September 20, 1870 (Breach of Porta Pia); officially designated capital July 1871 |
Florence hosted the first Italian parliament in Palazzo Vecchio. The move stimulated urban renewal (Piazza della Repubblica, boulevards) but was always provisional. The government operated from temporary ministries while planning Rome's administrative infrastructure.
On September 20, 1870, Bersaglieri corps breached the Aurelian Walls at Porta Pia. A plebiscite (October 2) ratified annexation. The Law of Guarantees (1871) offered the Pope Vatican sovereignty and annual indemnity—rejected by Pius IX, initiating the "Roman Question" resolved only by the 1929 Lateran Treaties.
Understanding the Turin→Florence→Rome sequence reveals unification as a diplomatic and military process, not a declarative moment—and explains why Rome's early government buildings (ministries, Victor Emmanuel II monument) date from the 1870s–1910s, not the 1860s.