<P> The Catalan independence movement (Catalan: independentisme català; Spanish: independentismo catalán) is a political movement historically derived from Catalan nationalism, which seeks independence of Catalonia from Spain . The Estelada flag, which has a "blue" and a "red" version, has become its main symbol . The political movement began in 1922 when Francesc Macià founded the political party Estat Català (Catalan State). In 1931, Estat Català and other parties formed Esquerra Republicana de Catalunya (Republican Left of Catalonia; ERC). Macià proclaimed a Catalan Republic in 1931, subsequently accepting autonomy within the Spanish state after negotiations with the leaders of the Second Spanish Republic . During the Spanish Civil War, General Francisco Franco abolished Catalan autonomy in 1938 . Following Franco's death in 1975, Catalan political parties concentrated on autonomy rather than independence . </P> <P> The modern independence movement began in 2010 when the Constitutional Court of Spain ruled that some of the articles of the 2006 Statute of Autonomy--which had been agreed with the Spanish government and passed by a referendum in Catalonia--were unconstitutional, and others were to be interpreted restrictively . Popular protest against the decision quickly turned into demands for independence . Starting with the town of Arenys de Munt, over 550 municipalities in Catalonia held symbolic referendums on independence between 2009 and 2011 . All of the towns returned a high "yes" vote, with a turnout of around 30% of those eligible to vote . A 2010 protest demonstration against the court's decision, organised by the cultural organisation Òmnium Cultural, was attended by over a million people . The popular movement fed upwards to the politicians; a second mass protest on 11 September 2012 (the National Day of Catalonia) explicitly called on the Catalan government to begin the process towards independence . Catalan president Artur Mas called a snap general election, which resulted in a pro-independence majority for the first time in the region's history . The new parliament adopted the Catalan Sovereignty Declaration in early 2013, asserting that the Catalan people had the right to decide their own political future . </P>

How long has catalonia wanted independence from spain
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