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.
Sardinia
In 1983 a prominent activist of a separatist party, the Sardinian Action Party ("Partidu Sardu – Partito Sardo d'Azione"), was elected president of the regional parliament, and in the 1980s several other movements calling for independence from Italy were born; in the 1990s some of them became political parties, even if in a rather disjointed manner. It was not until 1999 that the island's languages (Sardinian, Sassarese, Gallurese, Algherese and Tabarchino) were recognised, even if just formally, together with Italian. The 35th G8 summit was planned by Prodi II Cabinet to be held in Sardinia, on the island of La Maddalena, in July 2009; however, in April 2009, the Italian Prime Minister, Silvio Berlusconi, decided, without convoking the Italian parliament or consulting the Sardinian governor of his own party, to move the summit, even though the works were almost completed, to L'Aquila, provoking heavy protests.