Català joined with the Partit Republicà Català (Catalan Republican Party) and the political group L'Opinió (Opinion) to form Esquerra Republicana de Catalunya (Republican Left of Catalonia; ERC), with Macià as its first leader. The following month, the ERC achieved a spectacular victory in the municipal elections that preceded the 14 April proclamation of the Second Spanish Republic. Macià proclaimed a Catalan Republic on 14 April, but after negotiations with the provisional government he was obliged to settle for autonomy, under a revived Generalitat of Catalonia. Catalonia was granted a statute of autonomy in 1932, which lasted until the Spanish Civil War. In 1938, General Franco abolished both the Statute of Autonomy and the Generalitat. A section of Estat Català which had broken away from the ERC in 1936 joined with other groups to found the Front Nacional de Catalunya (National Front of Catalonia; FNC) in Paris in 1940. The FNC declared its aim to be "an energetic protest against Franco and an affirmation of Catalan nationalism". Its impact, however, was on Catalan exiles in France rather than in Catalonia itself. The FNC in turn gave rise to the Partit Socialista d'Alliberament Nacional (Socialist Party of National Liberation; PSAN), which combined a pro-independence agenda with a left-wing stance. A split in the PSAN led to the formation of the Partit Socialista d'Alliberament Nacional - Provisional (Socialist Party of National Liberation - Provisional; PSAN-P) in 1974. Following Franco's death in 1975, Spain moved to restore democracy. A new constitution was adopted in 1978, which asserted the "indivisible unity of the Spanish Nation", but acknowledged "the right to autonomy of the nationalities and regions which form it". Independence parties objected to it on the basis that it was incompatible with Catalan self-determination, and formed the Comité Català Contra la Constitució Espanyola (Catalan Committee Against the Constitution) to oppose it. The constitution was approved in a referendum by 88% of voters in Spain overall, and just over 90% in Catalonia. It was followed by the Statute of Autonomy of Catalonia of 1979, which was approved in a referendum, with 88% of voters supporting it. This led to the marginalisation or disappearance of pro-independence political groups, and for a time the gap was filled by militant groups such as Terra Lliure. In 1981, a manifesto issued by intellectuals in Catalonia claiming discrimination against the Castilian language, drew a response in the form of published letter,