The decade was also a period of revolution in a number of countries. The Portuguese 5 October 1910 revolution, which ended the eight-century long monarchy, spearheaded the trend, followed by the Mexican Revolution in November 1910, which led to the ousting of dictator Porfirio Diaz, developing into a violent civil war that dragged on until mid-1920, not long after a new Mexican Constitution was signed and ratified. The Russian Empire also had a similar fate, since its participation on World War I led it to a social, political and economical collapse which made the tsarist autocracy unsustainable and, as a following of the events of 1905, culminated in the Russian Revolution and the establishment of the Russian Soviet Federative Socialist Republic, under the direction of the Bolshevik Party later renamed as Communist Party of the Soviet Union. The Russian Revolution of 1917, known as the October Revolution, was followed by the Russian Civil War, which dragged on until approximately late 1922.