movement in Spain, Confederación Nacional del Trabajo was founded in 1910 and Federación Anarquista Ibérica in 1927. Catalanism and Vasquism, alongside other nationalisms and regionalisms in Spain, arose in that period, being the Basque Nationalist Party formed in 1895 and Regionalist League of Catalonia in 1901. Political corruption and repression weakened the democratic system of the constitutional monarchy of a two-parties system. The July 1909 Tragic Week events and repression exemplified the social instability of the time. The La Canadiense strike in 1919 led to the first law limiting the working day to eight hours. After a period of Crown-supported dictatorship from 1923 to 1931, the first elections since 1923, largely understood as a plebiscite on Monarchy, took place: the 12 April 1931 municipal elections. These gave a resounding victory to the Republican-Socialist candidacies in large cities and provincial capitals, with a majority of monarchist councilors in rural areas. The king left the country and the proclamation of the Republic on 14 April ensued, with the formation of a provisional government. A constitution for the country was passed in October 1931 following the June 1931 Constituent general election, and a series of cabinets presided by Manuel Azaña supported by republican parties and the PSOE followed. In the election held in 1933 the right triumphed and in 1936, the left. During the Second Republic there was a great political and social upheaval, marked by a sharp radicalization of the left and the right. Instances of political violence during this period included the burning of churches, the 1932 failed coup d'état led by José Sanjurjo, the Revolution of 1934 and numerous attacks against rival political leaders. On the other hand, it is also during the Second Republic when important reforms to modernize the country were initiated: a democratic constitution, agrarian reform, restructuring of the army, political decentralization and women's right to vote. Civil War and Francoist dictatorship The Spanish Civil War broke out in 1936: on 17 and 18 July, part of the military carried out a coup d'état that triumphed in only part of the country. The situation led to a civil war, in which the territory was divided into two zones: one under the authority of the Republican government, that counted on outside support from the Soviet Union and Mexico (and from International Brigades), and the other controlled by the putschists (the Nationalist or rebel faction), most critically supported by