The Social Democracy party (Italian: Democrazia Sociale, DS), also known as Italian Social Democratic Party (Italian: Partito Democratico Sociale Italiano), was a radical and social-liberal political party in Italy.
History
In 1921 general election the alliance referred to as the Social Democratic Party won 4.7% of the vote and 29 seats.
In January 1922 the "National Council of Social Democracy and Radicalism" was officially created; this event is considered the date of the party's official formation and name, and of the dissolution of the Italian Radical Party. The main party's founders were Giovanni Antonio Colonna di Cesarò, Arturo Labriola and Ettore Sacchi.
After the March on Rome, the party took part to the governments of Benito Mussolini until July 1924. It gained only 1.6% of votes in the general election of the same year and Antonio Colonna di Cesarò took part to the Aventine Secession. The party was disbanded by the regime in 1926, as all the other parties.
After World War II some of its members joined the Labour Democratic Party, a centre-left party.