evidence: 20th century [edit]With the assassination of Archduke Franz Ferdinand of Austria, carried out by Bosnian Serb Gavrilo Princip, a member of the Yugoslavist Mlada Bosna, World War I broke out in 1914. Following the war, the territory of modern-day Republika Srpska was incorporated into the Vrbas, Drina, and Zeta banovinas of the Kingdom of Serbs, Croats, and Slovenes, renamed Yugoslavia in 1929. [...] - ^ "BANJE SRPSKE – Banje Srpske" (in Serbian (Cyrillic script)). Retrieved 31 October 2020.[permanent dead link] [...] - Republika Srpska - Political divisions of Bosnia and Herzegovina - States and territories established in 1992 - Enclaves and exclaves - 1992 establishments in Bosnia and Herzegovina - Separatism in Bosnia and Herzegovina - Countries and territories where Serbian is an official language - Regions of Europe with multiple official languages - Countries and territories where Bosnian is an official language