|Founded||8 January 1881|
|Dissolved||30 November 1945|
|Political position||Centre-right to right-wing|
|Sister party||Serb People's Radical Party (1905-18)|
The People's Radical Party (Serbian: ? ?, romanized: Narodna radikalna stranka, abbr. or NRS) was the dominant ruling party in Kingdom of Serbia and later Kingdom of Serbs, Croats and Slovenes from the late 1880s until 1928.
The founding of the party was related to the circle of Serbian youth followers of Svetozar Markovi? and Nikola Pa?i? in Zurich. The leaders of this group proposed a political programme in which they called for:
The first main assembly of the People's Radical Party was in July 1882 in Kragujevac. The Radical's program, inspired by French Radicalism, was adopted, and Nikola Pa?i? was elected as the president of the central committee. The Radical Party had its own daily (Samouprava, "Self-Government"), which was critical of the ruling monarchy, demanding democracy, public liberties and liberal reforms of the bureaucratic system. The Radical leaders, mostly Swiss and French-educated (Nikola Pa?i?, Pera Todorovi?, Pera Velimirovi?, Jovan Djaja, Andra Nikoli?, Ranko Taj?i?, Lazar Doki?, Ra?a Milo?evi?, Sima Lozani?, ?ura Ljo?i?, Gli?a Ger?i?, Svetomir Nikolajevi?, Kosta Tau?anovi?, etc.) with other urban and provincial elites (Stojan Proti?, Adam Bogosavljevi?, Aca Stanojevi?, Lazar Pa?u, Dimitrije Kati?, Sava Gruji?), were the first that successfully mobilized Serbian peasantry and the provincial middle classes (including teachers, peasant leaders and priests). Among others, Radicals attracted important intellectuals, diplomats and university professor, such as Milovan Milovanovi?, Milenko Vesni?, Mihailo Vuji?, ?or?e Simi?, Jovan ?ujovi?.
In September 1883, the Timok Rebellion broke out in eastern Serbia when King Milan Obrenovi? declared that peasants' arms should be confiscated by the army. He charged the Radicals that with their article Disarmament of the people's army in Samouprava, they had encouraged the peasants to refuse to give up their weapons. The rebellion was set down in ten days. Most of the party head committee was captured in the aftermath, apart from Pa?i? himself and a few others, who escaped to the Principality of Bulgaria. The régime sentenced many of these Radicals to death, including those who in absentia. However, after some time, amnesty was given to certain Radicals who agreed to enter Obrenovi?'s government in 1887.
The Radicals were instrumental in the adoption of the 1888 Serbian Constitution, which established parliamentary democracy, almost all of the political program. The parliamentary rule was introduced, rights were guaranteed as well as the freedom of citizens and local self-government. Radicals disposed of, after 1889, with almost 80 percent of the popular vote. The Radicals were ardent supporters of unification of all Serb-inhabited lands in the Balkans and adopted the slogan "Balkans to the Balkan nations". In foreign policy, strongly anti-Austrian, it was mostly Russophile and Francophile, supporting the Franco-Russian Alliance and the Triple Entente.
After the compromise with the Crown in 1901, the younger group within the People's Radical Party formed a dissident faction in 1901 that in 1905, after failed reconciliation efforts with Pa?i? emerged as a new political party, the "Independent Radical Party", led by Ljubomir Stojanovi? and Ljubomir Davidovi? that was in power only in 1905 and 1906. After the Great War, Independent Radicals were transformed into the Republican and Democratic Party.
After the return of the Kara?or?evi? dynasty to the throne of Serbia in 1903 (following the May Overthrow), under the newly elected king Peter I Kara?or?evi?, a single-chamber National Assembly was introduced, and the new 1903 Constitution was slightly revised version of the 1888 Constitution, annulled by Aleksandar I Obrenovi? in 1894. Serbia became a parliamentary and constitutional monarchy. After the revolutionary government in 1903, the Radicals of Pa?i? formed several governments that began the important reforms of the nation.
The Radical governments led the Kingdom of Serbia through its Golden Age (1903-1914), as well as through the First World War. An organization known as the Yugoslav Committee signed the Corfu Declaration in 1917 with Nikola Pa?i?, which called for the formation of a South Slavic state. After the war, the State of Slovenes, Croats, and Serbs was formed from lands previously part of the Austro-Hungarian Empire by the Croatian Parliament and others. However, Prince Alexander, citing the Corfu Declaration, declared the Kingdom of Serbs, Croats, and Slovenes. The Croatian Parliament voted to incorporate itself into the National Assembly of the State of Slovenes, Croats, and Serbs, and it was represented by it. The representatives of the National Assembly agreed to merge with the Kingdom of Serbia.
While a multi-ethnic state, the Kingdom's prime ministers from 1918 to 1928 were all Serbian with the People's Radical Party holding the prime ministry for eight of the years. In the National Assembly, outdated electoral rules and Yugoslav police actions against opponents of the régime favoured the Radical Party. For example, in the 1923 elections, the party received a quarter of the kingdom's vote, but census results from 1910 assigned Serbia a greater representation, and the Radical Party took just over a third of the Assembly's seats.
After Pa?i?'s death in 1926, Aca Stanojevi? became the party's president. In 1929, King Alexander declared a personal rule banning the People's Radical Party and others. Certain members of the party entered into Alexander's governments, and Stanojevi? called for the end of the royal dictatorship and the return to parliamentary democracy and local self-government.