Slovenia - History
Slovenia became part of the Roman Empire in the first century B.C. Slovenia and Croatia became part of the Austro-Hungarian kingdom when the dual monarchy was established in 1867.
With the collapse of the Austria-Hungary in 1918, the Slovenes initially joined the State of Slovenes, Croats and Serbs, which just a few months later merged into the Kingdom of Serbs, Croats and Slovenes, in 1929 renamed to Kingdom of Yugoslavia. In December 1990, the overwhelming majority of Slovenian citizens voted for independence, which was declared on 25 June 1991.