The Unitary Socialist Party (''Partito Socialista Unitario'', PSU) was a

democratic socialist Democratic socialism is a left-wing political philosophy that supports political democracy and some form of a socially owned economy, with a particular emphasis on economic democracy, workplace democracy, and workers' self-management within a ...

political party in Italy This article contains a list of political parties in Italy since Italian unification in 1861. Throughout history, numerous political parties have been operating in Italy, and since World War II no party has ever gained enough support to govern ...

, active from 1922 to 1930.

History

The party was founded in November 1922 by the reformist wing of the

Italian Socialist Party The Italian Socialist Party (, PSI) was a socialist and later social-democratic political party in Italy, whose history stretched for longer than a century, making it one of the longest-living parties of the country. Founded in Genoa in 1892, ...

(PSI) led by Rinaldo Rigola, Filippo Turati and Giacomo Matteotti, after they had been expelled in October. A staunch opponent of

Benito Mussolini Benito Amilcare Andrea Mussolini (; 29 July 188328 April 1945) was an Italian politician and journalist who founded and led the National Fascist Party. He was Prime Minister of Italy from the March on Rome in 1922 until his deposition in 194 ...

and

Fascism Fascism is a far-right, authoritarian, ultra-nationalist political ideology and movement,: "extreme militaristic nationalism, contempt for electoral democracy and political and cultural liberalism, a belief in natural social hierarchy an ...

, Matteotti was assassinated by Fascists, affiliated to ''

OVRA The OVRA, whose most probable name was Organization for Vigilance and Repression of Anti-Fascism ( it, Organizzazione per la Vigilanza e la Repressione dell'Antifascismo), was the secret police of the Kingdom of Italy, founded in 1927 under the ...

'', in June 1924. The event provoked the Aventine Secession. Outlawed in November 1925, the PSU became active in clandestinity, as the Italian Workers' Socialist Party (''Partito Socialista dei Lavoratori Italiani'', PSLI). In June 1930 the PSLI re-joined the PSI. Leading members and activists of the party included

Oddino Morgari Oddino Morgari (November 16, 1865 – November 24, 1944) was an Italian socialist journalist and politician. He was a member of the Chamber of Deputies from 1897 to 1929, for eight legislatures. Early life Initially a Mazzinian radical, he ...

Sandro Pertini Alessandro "Sandro" Pertini (; 25 September 1896 – 24 February 1990) was an Italian socialist politician who served as the president of Italy from 1978 to 1985. Early life Born in Stella (Province of Savona) as the son of a wealthy landown ...

, Camillo Prampolini, Claudio Treves and

Anna Kulischov Anna Kuliscioff (; rus, Анна Кулишёва, , ˈanːə kʊlʲɪˈʂovə; born Anna Moiseyevna Rozenshtein, ; 9 January 1857 – 27 December 1925) was a Russian-Italian revolutionary of Jewish origin, a prominent feminist, an anarchist in ...

. The party was a member of the

Labour and Socialist International The Labour and Socialist International (LSI; german: Sozialistische Arbeiter-Internationale, label=German, SAI) was an international organization of socialist and labour parties, active between 1923 and 1940. The group was established through a me ...

between 1923 and 1930.Kowalski, Werner. (1985).
Geschichte der sozialistischen arbeiter-internationale: 1923 - 19
'. Berlin: Dt. Verl. d. Wissenschaften.

Electoral results

References

{{Authority control Political parties established in 1922 Defunct political parties in Italy Defunct social democratic parties in Italy Political parties disestablished in 1930 Members of the Labour and Socialist International 1922 establishments in Italy Anti-fascist organisations in Italy