Editing Slovenia (section)

=== Kingdom of Serbs, Croats, and Slovenes (later the Kingdom of Yugoslavia) ===
{{See also|Creation of Yugoslavia|Carinthian Plebiscite|Rudolf Maister}}
[[File:KongressfallofAH.jpg|thumb|right|The proclamation of the State of Slovenes, Croats and Serbs at [[Congress Square]] in Ljubljana on 29 October 1918]]
The [[Slovene People's Party (historical)|Slovene People's Party]] launched a movement for self-determination, demanding the creation of a semi-independent [[South Slavic peoples|South Slavic]] state under [[Habsburg dynasty|Habsburg]] rule. The proposal was picked up by most Slovene parties, and a mass mobilization of Slovene civil society, known as the [[May Declaration (1917)|Declaration Movement]], followed.<ref>{{Cite book |last=Kranjec |first=Silvo |chapter=Korošec Anton |title=Slovenski biografski leksikon |chapter-url=http://nl.ijs.si:8080/fedora/get/sbl:1188/VIEW/ |year=1925–1991 |edition=Online |publisher=[[Slovenian Academy of Sciences and Arts]] |access-date=24 July 2010 |language=sl |url-status=dead |archive-url=https://web.archive.org/web/20110823082222/http://nl.ijs.si:8080/fedora/get/sbl:1188/VIEW/ |archive-date=23 August 2011}}</ref> This demand was rejected by the Austrian political elites; but following the dissolution of the Austro-Hungarian Empire in the aftermath of the [[First World War]], the [[National Council of Slovenes, Croats and Serbs]] took power in [[Zagreb]] on 6 October 1918. On 29 October, independence was declared by a national gathering in Ljubljana, and by the Croatian parliament, declaring the establishment of the new [[State of Slovenes, Croats, and Serbs]].

On 1 December 1918, the State of Slovenes, Croats and Serbs merged with [[Serbia]], becoming part of the new [[Kingdom of Serbs, Croats, and Slovenes]]; in 1929 it was renamed the [[Kingdom of Yugoslavia]]. The main territory of Slovenia, being the most industrialized and westernized compared to other less developed parts of Yugoslavia, became the main centre of industrial production: Compared to Serbia, for example, Slovenian industrial production was four times greater; and it was 22 times greater than in [[North Macedonia]]. The interwar period brought further industrialization in Slovenia, with rapid economic growth in the 1920s, followed by a relatively successful economic adjustment to the [[1929 economic crisis]] and [[Great Depression]].

Following a [[Carinthian Plebiscite|plebiscite]] in October 1920, the Slovene-speaking southern [[Carinthia (state)|Carinthia]] was ceded to [[Austria]]. With the [[Treaty of Trianon]], the Kingdom of Yugoslavia was awarded the mostly Slovene-inhabited [[Prekmurje]] region, formerly part of Austria-Hungary. Slovenes living in territories that fell under the rule of the neighboring states—Italy, Austria, and Hungary—were subjected to [[Cultural assimilation|assimilation]].