The unified Kingdom of Italy was formally proclaimed on March 17, 1861, by the first Italian Parliament, in Turin, with Victor Emmanuel II of the House of Savoy as its first king.
The declaration of the Kingdom of Italy followed over a decade of Risorgimento struggles (starting from the 1848 revolutions) and the successful "Expedition of the Thousand" led by Giuseppe Garibaldi in 1860, which unified the south with the north. At the time of the 1861 proclamation, Venice and Rome were not yet part of the new kingdom; Venice became part of Italy in1866 and Rome on September 20, 1870, after Italian troops captured the city, breaking the power of the Papal States. Rome was formally annexed, and it was officially proclaimed the capital of Italy on February 3, 1871.