The Spanish Revolution refers to a series of events during the early 20th century, particularly around the time of the Spanish Civil War (1936-1939). It was marked by a struggle between the Republican government, which included various leftist groups, and the Nationalists, led by Francisco Franco. The conflict arose from deep social, political, and economic divisions in Spain. The revolution aimed to establish a more egalitarian society, with significant involvement from labor unions and anarchist groups like the CNT (National Confederation of Labor). Despite initial successes in social reforms and worker control, the Nationalists ultimately won the war, leading to a long period of dictatorship under Franco.