State of Slovenes, Croats and Serbs

State of Slovenes, Croats and Serbs Država Slovencev, Hrvatov in Srbov (Slovene) Država Slovenaca, Hrvata i Srba (Croatian) Држава Словенаца, Хрвата и Срба (Serbian)
1918
Flag Coat of arms
The State of Slovenes, Croats and Serbs in 1918. Istria was a disputed area, officially ceded to Italy by the Treaty of Rapallo. Southern Carinthia and Lower Styria were also disputed areas, with the Treaty of Saint-Germain demarcating the border of the newly-created Kingdom of Serbs, Croats and Slovenes with Austria.
Status	Unrecognised provisional government seeking unification with Serbia
Capital	Zagreb
Common languages	Serbo-Croatian, Slovene
President of National Council
• 1918	Anton Korošec
Vice President
• 1918	Ante Pavelić Sr.
• 1918	Svetozar Pribićević
Legislature	National Council of Slovenes, Croats and Serbs
Historical era	Interwar period World War 1
• Proclaimed secession	29 October 1918
• Joined Kingdom of Serbs, Croats and Slovenes	1 December 1918
Population
• Estimate	6,000,000
Preceded by Succeeded by Bosnia and Herzegovina Kingdom of Croatia-Slavonia Duchy of Carniola Kingdom of Dalmatia Kingdom of Serbs, Croats and Slovenes Kingdom of Italy

The State of Slovenes, Croats and Serbs (Serbo-Croatian: Država Slovenaca, Hrvata i Srba / Држава Словенаца, Хрвата и Срба; Slovene: Država Slovencev, Hrvatov in Srbov) was a political entity that was constituted in October 1918, at the end of World War I, by Slovenes, Croats and Serbs (Prečani) residing in what were the southernmost parts of the Austro-Hungarian Empire. Although internationally unrecognised, this was the first incarnation of a Yugoslav state founded on the Pan-Slavic ideology.^[1] Thirty-three days after it was proclaimed, the state joined the Kingdom of Serbia to form the Kingdom of Serbs, Croats and Slovenes.