The Kingdom of Yugoslavia, "Land of the South Slavs," was formed on October 3, 1929. It included the regions of Serbia, Montenegro, Slovenia, Croatia, Bosnia and Herzegovina, and Macedonia. Croatia, Slovenia, and Macedonia declared their independence from Yugoslavia in 1991; Bosnia and Herzegovina did so the following year. The republics of Serbia and Montenegro declared a new Federal Republic of Yugoslavia in April 1992; Montenegro and Serbia became separate independent nations in June and October 2006, respectively.
In 1938 and 1939, folklorist Sidney Robertson Cowell made several sound recordings and photographs of Croatian-American singers and performers in Woodside, San Mateo, and Mountain View, California. The sound recordings include Dalmatian dance music, Serb-Croatian oral epic songs, and instrumental selections on the gusle, the misnice, the svirala, the lirica, and the dvorgrle.