The Socialist Party of Italy (Partito Socialista Italiano, PSI) was founded in 1892 and played a significant role in Italian politics throughout the 20th century. It aimed to represent the interests of the working class and promote socialist ideals, advocating for social justice, workers' rights, and economic equality. The party experienced various transformations and splits over the decades, reflecting the changing political landscape in Italy. During the post-World War II period, the PSI became a major political force, participating in several coalition governments. However, it faced challenges, including internal divisions and competition from other leftist parties, such as the Italian Communist Party. The party eventually declined in influence, leading to its dissolution in 1994.