Croatia
A 2011 survey revealed that 78% of Croatians claim knowledge of at least one foreign language. According to a survey ordered by the European Commission in 2005, 49% of Croatians speak English as the second language, 34% speak German, 14% speak Italian, and 10% speak French. Russian is spoken by 4% each, and 2% of Croatians speak Spanish. However, there are large municipalities that have minority languages that include substantial populations that speak these languages. An odd-majority of Slovenes (59%) have a certain level of knowledge of Croatian. The country is a part of various language-based international associations most notably the European Union Language Association.
Serbian language in Croatia
The Orthodox liturgical book Varaždin Apostol from 1454 represents the oldest preserved text in Cyrillic from the territory of today's Croatia. Croatian Constitutional law on national minorities rights, one of only two constitutional laws in country, entered into force on 23 December 2002.