Activity 25 By JaimeAP 1902 Alfonso XII declared King of Spain 1909 Tragic week 1910 Founding of the CNT 1917 The Crisis of 1917 1921 Disaster of annual 1921 Founding of the PCE 1923 Beginning of the Primo de Rivera dictatorship 1931 Declaration of the Second Spanish Republic 1931 Beginning of the Reformist Biennium Period: 1931 to 1933 The reformist biennium 1933 The Casas Viejas incident 1934 The Revolution of October 1934 in Asturias 1936 Victory of the Popular Front