Early years was one of the founders of the party. The PSI was founded on 14 August 1892 as the
Party of Italian Workers (
Partito dei Lavoratori Italiani) by delegates of several workers' associations and parties, notably including the
Italian Workers' Party and the
Milanese Socialist League. It was part of a wave of new socialist parties at the end of the 19th century and had to endure persecution by the Italian government during its early years. It modelled on the
Social Democratic Party of Germany. From 1912 to 1914, Mussolini headed up the pro-
Bolshevik wing of the PSI who purged moderate or reformist socialists.
Rise of fascism was secretary of the PSI and leader of its revolutionary wing, who led the party to its best result ever in
1919.
World War I tore the party apart. The orthodox socialists were challenged by advocates of
national syndicalism, who called for revolutionary war to liberate Italian-speaking territories from authoritarian
Austrian Empire control and force the government by threat of violence to create a
corporatist state. The national syndicalists intended to support Italian republicans in overthrowing the monarchy if such reforms were not made and if Italy did not enter the war together with the
Allied Powers and their struggle against the
Central Empires, seen as the final fight for the worldwide triumph of freedom and democracy. The dominant internationalist and pacifist wing of the party remained committed to avoiding what it called a bourgeois war. The PSI's refusal to support the war led to its national syndicalist faction either leaving or being purged from the party, such as Mussolini who had begun to show sympathy to the national syndicalist cause. A number of the national syndicalists expelled from the PSI later joined Mussolini's
Italian fascist revolutionary movement in 1914, including the
Fasces of Revolutionary Action in 1915 (later
Italian Fasces of Combat). During the Third Fascist Congress in late 1921, Mussolini turned the Fasces of Combat into the
National Fascist Party. After the
Russian Revolution of 1917, the PSI quickly aligned itself in support of the Bolshevik movement in Russia and supported its call for the overthrow of the bourgeoisie. In the
1919 Italian general election, the PSI, led by
Nicola Bombacci, reached its highest result ever: 32.0% and 156 seats in the country's
Chamber of Deputies. From 1919 to the 1920s, Socialists and Fascists emerged as prominent rival movements in Italy's urban centres, often resorting to political violence in their clashes. In 1919, the Socialist Party of Turin formed the
Red Army of Turin, which was accompanied by a proposal to organise a national confederation of Red Scouts and Cyclists. At the 1921
Livorno Congress, the left wing of the party broke away in 1921 to form the
Communist Party of Italy (PCdI), a division from which the PSI never recovered and that had enormous consequences on Italian politics. In 1922, another split occurred when the reformist wing of the party, headed by Turati and
Giacomo Matteotti, was expelled and formed the
Unitary Socialist Party (PSU).
Post-World War II was a historical leader of the PSI. In the
1946 Italian general election, the first after
World War II, the PSI obtained 20.7% of the vote, narrowly ahead of the
Italian Communist Party (PCI) that gained 18.9%. In the
1948 Italian general election, the United States secretly convinced Britain's
Labour Party to pressure Socialists to end all coalitions with Communists, which fostered a split in PSI. Socialists led by
Pietro Nenni chose to take part in the
Popular Democratic Front along with the PCI, while
Giuseppe Saragat launched the
Italian Workers' Socialist Party. The PSI was weakened by the split and was far less organised than the PCI, so Communist candidates were far more competitive. As a result, the PSI parliamentary delegation was cut by a half. Nonetheless, the PSI continued its alliance with the PCI until 1956, when the Soviet repression of the
Hungarian Revolution of 1956 caused a major split between the two parties. Starting from 1963, Socialists participated in the
Organic centre-left governments in alliance with
Christian Democracy (DC), the
Italian Democratic Socialist Party (PSDI) and the
Italian Republican Party (PRI). These governments acceded to many of the demands of the PSI for social reform and laid the foundations for Italy's modern
welfare state. In 1964, the internal left wing left the party in opposition to both the plan to form a government with the Christian Democrats and the plan to reunify with Saragat's Social Democratic Party. The splinter group thus founded the PSIUP, led by prominent figures in Italian socialism:
Tullio Vecchietti,
Vittorio Foa,
Lelio Basso,
Emilio Lussu, Lucio Libertini and Lucio Mario Luzzatto, followed by young leaders and officials such as Giuseppe Pupillo, Roberto Speciale, Dario Valori, Giacomo Princigalli, Andrea Margheri, Giorgio Gabanizza, Vincenzo Balsamo and even higher, who will all be part of the central committee of the new party.. During the 1960s and 1970s, the PSI lost much of its influence despite actively participating in the government. The PCI gradually outnumbered it as the dominant political force in the Italian left. The PSI tried to enlarge its base by joining forces with the PSDI under the name
Unified Socialist Party (PSU). After a disappointing loss in the
1968 Italian general election in which the PSU gained far fewer seats in total than each of the two parties had obtained separately in 1963, it disbanded. The
1972 Italian general election underlined the PSI's precipitate decline as the party received less than 10% of the vote compared to 14.2% in 1958, when Nenni assumed the leadership of the autonomist faction. including the PCI, proposed by Craxi in 1989. He believed that the
Fall of Communism in eastern Europe had undermined the PCI and made Socialist Unity inevitable. In fact, the PSI was in line to become the Italy's second largest party and to become the dominant force of a new left-wing coalition opposed to a Christian Democrat-led one; this did not actually happen because of the rise of
Lega Nord and the
Tangentopoli scandals.
Decline was the party's second prime minister of Italy from 1992 to 1993. In February 1992,
Mario Chiesa, a Socialist hospital administrator in
Milan, was caught taking a bribe. Craxi denounced Chiesa by calling him an isolated thief, who had nothing to do with the party as a whole. Feeling betrayed, Chiesa confessed his crimes to the police and implicated others, starting a chain reaction of judicial investigations that would ultimately engulf the entire political system. The investigations, named
mani pulite ("clean hands") was carried out by three Milanese magistrates among whom
Antonio Di Pietro quickly stood out becoming a national hero thanks to his charismatic character and his ability to extract confessions. The investigations were suspended for four weeks for the
1992 Italian general election to take place in an uninfluenced atmosphere and the PSI managed to garner 13.6% of the vote in spite of the corruption scandals. Many in the party thought the scandal had been brought under control; they failed to realise that investigations would eventually be launched against ministers and party leaders. Furthermore, as early as May 1992, public opinion unconditionally supported the magistrates against a political system that the majority of Italians already distrusted. Craxi himself was under criminal investigation since December 1992. In April 1993, the
Italian Parliament denied four times the authorisation for magistrates to continue investigation for Craxi. Italian newspapers shouted scandal and Craxi was besieged at his Rome residence by a crowd of young people, who threw coins at him, shouting "Bettino, do you want these as well?" This scene was to become one of the many symbols of that period. In 1992–1993, many PSI regional, provincial, and municipal deputies, MPs, mayors and even ministers found themselves overwhelmed with accusations and arrests. At this point, public opinion turned against the PSI and many regional headquarters of the party were besieged by people who wanted an honest party with true socialist values. Between January 1993 and February 1993,
Claudio Martelli (former justice minister and deputy prime minister) started to contend for party leadership. Martelli stepped forward as a candidate, emphasising the need to clean the party of corruption and make it electable. Although he had many supporters, Martelli and Craxi were both caught in a scandal dating back to 1982, when the
Banco Ambrosiano gave to the two of them around 7 million dollars. Martelli subsequently resigned from the party and from the government.
Giuliano Amato, a member of the PSI, resigned as prime minister in April 1993. His government was succeeded by a technocratic government led by
Carlo Azeglio Ciampi.
Dissolution became the main symbol of the late PSI. Craxi resigned as party secretary in February 1993. Between 1992 and 1993, most members of the party left politics and three PSI deputies committed suicide. Craxi was succeeded by two Socialist trade-unionists, first
Giorgio Benvenuto and then by
Ottaviano Del Turco. In the December 1993 provincial and municipal elections, the PSI was virtually wiped out, receiving around 3% of the vote. In Milan, where the PSI had won 20% in 1990, the PSI received a mere 2% and was shut out of the council. Del Turco tried in vain to regain credibility for the party. By the
1994 Italian general election, the PSI was in a state of near-collapse. Its remains contested the election as part of the
Alliance of Progressives dominated by the
post-Communist incarnation of the PCI, the
Democratic Party of the Left (PDS). Del Turco had quickly changed the party symbol to reinforce the idea of innovation, which did not stop the PSI gaining only 2.2% of the votes compared to 13.6% in 1992. The PSI elected 16 deputies, as well as 14 senators, down from 92 deputies and 49 senators of 1992. Most of them came from the left wing of the party as Del Turco himself did. Most Socialists joined other political forces, mainly
Forza Italia, the new party led by
Silvio Berlusconi, the
Patto Segni, and
Democratic Alliance. The party was disbanded on 13 November 1994 after two years in which almost all of its longtime leaders, especially Craxi, were involved in
Tangentopoli and decided to leave politics. The 100-year-old party closed down, partially thanks to its leaders for their personalisation of the PSI.
Diaspora tried an unsuccessful renaissance for the PSI and its legal successors. Socialists who did not align with the other parties organised themselves in two groups: the
Italian Socialists (SI) of
Enrico Boselli,
Ottaviano Del Turco,
Roberto Villetti,
Riccardo Nencini,
Cesare Marini, and
Maria Rosaria Manieri, who decided to be autonomous from the PDS; and the
Labour Federation (FL) of
Valdo Spini,
Antonio Ruberti,
Giorgio Ruffolo,
Giuseppe Pericu,
Carlo Carli, and
Rosario Olivo, who entered in close alliance with it. The SI eventually merged with other Socialist splinter groups to form the
Italian Democratic Socialists (SDI) in 1998, while the FL merged with PDS to form the
Democrats of the Left (DS) later on that year. Between 1994 and 1996, many former Socialists joined
Forza Italia (FI), as did
Giulio Tremonti,
Franco Frattini,
Massimo Baldini, and
Luigi Cesaro.
Gianni De Michelis,
Ugo Intini and several politicians close to Craxi formed the
Socialist Party, while others like
Fabrizio Cicchitto and
Enrico Manca launched the
Reformist Socialist Party. In the 2000s, two outfits claimed to be the party's successor, namely the Italian Democratic Socialists (SDI) that evolved from the Italian Socialists (SI) and the
New Italian Socialist Party (NPSI) founded by
Gianni De Michelis,
Claudio Martelli, and
Bobo Craxi in 2001. Both the SDI and the NPSI were minor political forces. A number of Socialist members and voters joined FI, while others joined the DS and
Democracy is Freedom – The Daisy (DL). Many others were not members of any party any more. Some former Socialists were affiliated to
The People of Freedom (PdL) and remains in the 2013 refoundation of FI, while others are in centre-left
Democratic Party (PD) and modern-day
Socialist Party (PS). Socialists who joined FI include Tremonti, Frattini,
Fabrizio Cicchitto,
Renato Brunetta,
Amalia Sartori,
Francesco Musotto,
Margherita Boniver,
Francesco Colucci,
Raffaele Iannuzzi,
Maurizio Sacconi,
Luigi Cesaro, and
Stefania Craxi. Although it may seem unusual for self-identified socialists to be members of a centre-right party, many of those who did so felt that the centre-left was by now dominated by former Communists and the best way to fight for mainstream social democracy was through FI/PdL.
Valdo Spini,
Giorgio Benvenuto,
Gianni Pittella and
Guglielmo Epifani joined the DS, while
Enrico Manca,
Tiziano Treu,
Laura Fincato, and
Linda Lanzillotta joined DL.
Giuliano Amato joined
The Olive Tree as an independent. In 2007, some former Socialists, including the SDI, a portion of the NPSI led by Gianni De Michelis,
The Italian Socialists of
Bobo Craxi,
Socialism is Freedom of
Rino Formica and splinters from the DS joined forces and formed the
Socialist Party (PS), renamed Italian Socialist Party (PSI) in 2011. This PSI is the only Italian party represented in Parliament that explicitly refers to itself as Socialist; many other Socialist associations and organisation participate to the political debate both in the centre-right and the centre-left coalitions. == Ideology ==