The PSOE, or the Spanish Socialist Workers' Party, is a major political party in Spain. Founded in 1879, it is one of the oldest political parties in the country and is known for its center-left ideology. The PSOE advocates for social democracy and progressive policies, focusing on issues like social justice, workers' rights, and equality. The party has played a significant role in Spanish politics, having formed several governments since the restoration of democracy in the late 1970s. The PSOE is a member of the Party of European Socialists and has been influential in shaping Spain's modern political landscape, particularly during times of economic and social change.