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The Spanish Civil War and the Franco period

During the Spanish Civil War, the city, and Catalonia in general, were resolutely Republican. Many enterprises and public services were collectivized by the CNT and UGT unions. As the power of the Republican government and the Generalitat diminished, much of the city was under the effective control of anarchist groups. The anarchists lost control of the city to their own allies, the Communists and official government troops, after the street fighting of the Barcelona May Days. The fall of the city on 26 January 1939, caused a mass exodus of civilians who fled to the French border. The resistance of Barcelona to Franco 's coup d'état was to have lasting effects after the defeat of the Republican government. The autonomous institutions of Catalonia were abolished, and the use of the Catalan language in public life was suppressed. Barcelona remained the second largest city in Spain, at the heart of a region which was relatively industrialized and prosperous, despite the devastation of the civil war. The result was a large-scale immigration from poorer regions of Spain (particularly Andalusia, Murcia and Galicia), which in turn led to rapid urbanization.