Italian Socialist Party of Proletarian Unity

Defunct socialist party in Italy

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Italian Socialist Party of Proletarian Unity Partito Socialista Italiano di Unità Proletaria

Abbreviation	PSIUP
President	Lelio Basso
General Secretary	Tullio Vecchietti
Spokesperson	Dario Valori
Founded	12 January 1964 (1964-01-12)
Dissolved	13 July 1972 (1972-07-13)
Split from	Italian Socialist Party
Merged into	Italian Communist Party
Headquarters	Rome, Italy
Newspaper	Mondo nuovo
Ideology	Socialism Marxism Frontism Factions Pro-Soviet Union Revolutionary socialism Libertarian socialism
Political position	Left-wing Factions Far-left
Colours	Red
Party flag

Politics of Italy Political parties Elections

The Italian Socialist Party of Proletarian Unity (Partito Socialista Italiano di Unità Proletaria, PSIUP) was a political party in Italy, active from 1964 to 1972.

History

The PSIUP was formed on 12 January 1964 by a leftist section of the Italian Socialist Party (PSI). PSIUP had been the PSI's name in 1943–1947. The new PSIUP was led by Tullio Vecchietti. Other leading members were Lelio Basso, Vittorio Foa, Lucio Libertini, Emilio Lussu, Francesco Cacciatore detto Cecchino and Dario Valori. The new party attracted PSI militants who were dissatisfied with the close cooperation between the PSI and the Christian Democracy. Instead, the founders of the PSIUP favoured cooperation with the Italian Communist Party (PCI).

On 13 July 1972, following a disappointing electoral result, the PSIUP split. The majority, led by Libertini, Valori and Vecchietti, joined the PCI. The rightist minority, led by Giuseppe Avolio, Nicola Corretto and Vincenzo Gatto, rejoined the PSI. The leftist minority, led by Foa and Silvano Miniati, continued to work under the name PSIUP, and in December 1972 they established the Proletarian Unity Party (PdUP). A Posadist faction within the PSIUP published the Bollettino della sinistra rivoluzionaria del PSIUP between 1965 and 1967.

Electoral results

Italian Parliament

Election year	Votes	%	Seats	+/−	Leader
Chamber of Deputies
1968	1,414,697 (5th)	4.5	23 / 630	–	Tullio Vecchietti
1972	648,591 (8th)	1.9	0 / 630	23	Tullio Vecchietti

Election year	Votes	%	Seats	+/−	Leader
Senate of the Republic
1968	into PCI	–	13 / 315	–	Tullio Vecchietti
1972	into PCI	–	11 / 315	2	Tullio Vecchietti

Secretaries

Tullio Vecchietti (January 1964 – September 1971)
Dario Valori (October 1971 – July 1972)

References

Valdo Spini (January–April 1972). "The New Left in Italy". Journal of Contemporary History. 7 (1–2): 56. doi:10.1177/002200947200700103. JSTOR 259757.
Moss, David (1981). "The kidnapping and murder of Aldo Moro". European Journal of Sociology / Archives Européennes de Sociologie / Europäisches Archiv für Soziologie. 22 (2): 265–295. ISSN 0003-9756. JSTOR 23999304.

External links

Lelio Basso, The Italian Left, "Socialist Register", 1966.

v t e Historical political parties in Italy
Communist	Proletarian Unity Party (1972–1984) Italian Communist Party (1921–1991) Proletarian Democracy (1978–1991) Party of Italian Communists (1998–2014)
Democratic socialist	Italian Revolutionary Socialist Party (1881–1893) Italian Workers' Party (1882–1892) Italian Socialist Party of Proletarian Unity (1964–1972) Democratic Party of the Left (1991–1998) Democratic Left (2007–2010) Left Ecology Freedom (2010-2016)
Green	Rainbow Greens (1989–1990) Federation of Green Lists (1986–1990) Federation of the Greens (1990–2021)
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Conservative-liberal	Liberal Union (1913–1922) Italian Liberal Party (1922–1994) National Democratic Alliance (1953–1954) Union of the Centre
Liberal-conservative	Economic Party (1919–1924) Forza Italia (1994–2009) The People of Freedom (2009–2013) Future and Freedom (2010–2014) New Centre-Right (2013–2017) Conservatives and Reformists (2015–2017) Direction Italy (2017–2019) Cambiamo! (2019–2022)
National-conservative	Common Man's Front (1946–1949) Monarchist National Party (1946–1959) People's Monarchist Party (1954–1959) Italian Democratic Party of Monarchist Unity (1959–1972) National Democracy (1977–1979) National Alliance (1995–2009)
Nationalist	Italian Nationalist Association (1910–1923) Combatants' Party (1919–1923) National Fascist Party (1921–1943) Republican Fascist Party (1943–1945) Italian Social Movement (1946–1995)
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