 Vuk's Cyrillic alphabet was officially adopted in Serbia in 1868, and was in exclusive use in the country up to the inter-war period.Both alphabets were co-official in the Kingdom of Yugoslavia and later in the Socialist Federal Republic of Yugoslavia.Due to the shared cultural area, Gaj's Latin alphabet saw a gradual adoption in Serbia since, and both scripts are used to write modern standard Serbian, Montenegrin and Bosnian; Croatian only uses the Latin alphabet.