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Radicalism (from Latin radix, "root") was a historical political movement within liberalism during the late 18th and early 19th centuries and a precursor to social liberalism. Its identified radicals were proponents of democratic reform in what subsequently became the parliamentary Radicals in the United Kingdom. During the 19th century in the United Kingdom, continental Europe and Latin America, the term radical came to denote a progressive liberal ideology inspired by the French Revolution . Historically, radicalism emerged in an early form with the French Revolution and the similar movements it inspired in other countries. It grew prominent during the 1830s in the United Kingdom with the Chartists and Belgium with the Revolution of 1830, then across Europe in the 1840s–1850s during the Revolutions of 1848. In contrast to the social conservatism of existing liberal politics, radicalism sought political support for a radical reform of the electoral system to widen suffrage. It was also associated with republicanism, liberalism, left-wing politics, modernism, secular humanism, anti-militarism, civic nationalism, abolition of titles, rationalism and the resistance to a single established state religion, redistribution of property and freedom of the press. In 19th-century France, radicalism had emerged as a minor political force by the 1840s as the extreme left of the day (in contrast to the socially-conservative liberalism of the Moderate Republicans and Orléanist monarchists and the anti-parliamentarianism of the Legitimist monarchists and Bonapartists). By the 1890s, the French radicals were not organised under a single nationwide structure, but rather they had become a significant political force in parliament. In 1901, they consolidated their efforts by forming the country's first major extra-parliamentary political party, the Republican, Radical and Radical-Socialist Party which became the most important party of government during the second half (1899 to 1940) of the French Third Republic. The success of the French Radicals encouraged radicals elsewhere to organise themselves into formal parties in a range of other countries in the late 19th and early 20th century, with radicals holding significant political office in Bulgaria, Denmark, Germany, Greece, Ireland, Italy, Netherlands, Portugal, Romania, Russia, Spain, Sweden and Switzerland. During the interwar period, European radical parties organised the Radical Entente, their own political international. As social democracy emerged as a distinct political force in its own right, the differences that once existed between historical left-wing radicalism and conservative liberalism diminished. Between 1940 and 1973, radicalism became defunct in most of its European heartlands, with its role and philosophy taken on by social-democratic and conservative-liberal parties.