Socialist Party of the Islands of the Valencian Country (PSPV), part of the Socialist Coordination of the Catalan Countries. Ahead of the 1977 general election, PSI created an alliance together with MSM and MSEF, joining the People's Socialist Party (PSP) in the Socialist Unity (US) coalition. US did not gain any seat in the Congress nor in the Senate in the Balearic Islands constituency. After the election, PSI refused to merge with the Balearic federation of the Spanish Socialist Workers' Party, and instead founded the Socialist Party of Majorca (PSM). Socialist Party of the Islands Socialist Party of the Islands (Catalan: "Partit Socialista de les
Parliament of the Balearic Islands defined by the 1977 general election results in the Balearic Islands, which were the following: The 1978 Spanish Constitution anticipated the organisation of the State in Autonomous Communities. The different historic regions and nationalities could access to the autonomy through two ways; the so-called fast way (article 151) and the so-called slow or common way (article 143). During the process of achievement, the province or provinces could request to the Congress of Deputies the regime of preautonomy, as a transition period from the centralism to the self-government. On 13 June 1978 the Inter-island General Council (), preautonomous body for the