Kingdom of Sardinia
On 17 March 1861, law no. 4671 of the Sardinian Parliament proclaimed the Kingdom of Italy, so ratifying the annexations of all other Apennine states, plus Sicily, to the Kingdom of Sardinia. The institutions and laws of the Kingdom were quickly extended to all of Italy, abolishing the administrations of the other regions. Piedmont became the most dominant and wealthiest region in Italy and the capital of Piedmont, Turin, remained the Italian capital until 1865, when the capital was moved to Florence. But many revolts exploded throughout the peninsula, especially in southern Italy, and on the island of Sicily, because of the perceived unfair treatment of the south by the Piedmontese ruling class. The House of Savoy ruled Italy until 1946 when Italy was declared a republic by referendum. In this referendum the southern regions, including Sardinia, voted overwhelmingly in favor of the House of Savoy, with the results being 63.8% in favor of maintaining the monarchy.
Italian unification
Near Salemi, Garibaldi's army attracted scattered bands of rebels, and the combined forces defeated the opposing army at Calatafimi on 13 May. Within three days, the invading force had swelled to 4,000 men. On 14 May Garibaldi proclaimed himself dictator of Sicily, in the name of Victor Emmanuel. After waging various successful but hard-fought battles, Garibaldi advanced upon the Sicilian capital of Palermo, announcing his arrival by beacon-fires kindled at night. On 27 May the force laid siege to the Porta Termini of Palermo, while a mass uprising of street and barricade fighting broke out within the city.