The Italian Socialist Party of Proletarian Unity (''Partito Socialista Italiano di Unità Proletaria'', PSIUP) was a

political party A political party is an organization that coordinates candidates to compete in a particular area's elections. It is common for the members of a party to hold similar ideas about politics, and parties may promote specific political ideology, ...

Italy Italy, officially the Italian Republic, is a country in Southern Europe, Southern and Western Europe, Western Europe. It consists of Italian Peninsula, a peninsula that extends into the Mediterranean Sea, with the Alps on its northern land b ...

, active from 1964 to 1972.

History

The PSIUP was formed on 12 January 1964 by a leftist section of the

Italian Socialist Party The Italian Socialist Party (, PSI) was a Social democracy, social democratic and Democratic socialism, democratic socialist political party in Italy, whose history stretched for longer than a century, making it one of the longest-living parti ...

(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 Vittorio Foa (18 September 1910 – 20 October 2008) was an Italian politician, trade unionist, journalist, and writer. Early life and education Foa was born in Turin in 1910 into a middle-class Jewish family. He attended Liceo Classico Massi ...

Lucio Libertini Lucio is an Italian and Spanish male given name derived from the Latin name '' Lucius''. In Portuguese, the given name is accented Lúcio. Lucio is also an Italian surname. Given name * Lúcio (Lucimar Ferreira da Silva) (born 1978), Brazilia ...

Emilio Lussu Emilio Lussu (4 December 1890 – 5 March 1975) was a Sardinian people, Sardinian and Italian writer, anti-fascist intellectual, military officer, Italian resistance movement, partisan, and politician. He is also the author of the novel ''One Yea ...

, 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 Christian democracy is an ideology inspired by Christian social teaching to respond to the challenges of contemporary society and politics. Christian democracy has drawn mainly from Catholic social teaching and neo-scholasticism, as well ...

. Instead, the founders of the PSIUP favoured cooperation with the

Italian Communist Party The Italian Communist Party (, PCI) was a communist and democratic socialist political party in Italy. It was established in Livorno as the Communist Party of Italy (, PCd'I) on 21 January 1921, when it seceded from the Italian Socialist Part ...

(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

Secretaries

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

References

External links