Cyrillic and most magazines are in Latin; books written by Serbian authors are written in Cyrillic, whereas books translated from foreign authors are usually in Latin, other than languages that already use Cyrillic, most notably Russian. On television, writing as part of a television programme is usually in Cyrillic, but advertisements are usually in Latin. The division is partly based on religion – Serbia, Montenegro, Bulgaria and Macedonia (which use Cyrillic) are Orthodox countries, whereas Croatia and Slovenia (which use Latin) are Catholic. The Bosnian language, used by the Muslim Bosniaks, also uses Latin, but in the past used Bosnian Cyrillic. The Glagolitic alphabet was also used in the Middle Ages (most notably in Bulgaria, Macedonia and Croatia), but gradually disappeared. See also Abstand and ausbau languages Comparison of standard Bosnian, Croatian, Montenegrin and Serbian Language secessionism in Serbo-Croatian Mutual intelligibility Outline of Slavic history and culture Pluricentric Serbo-Croatian language South Slavic dialect continuum Standard language Yat Notes Sources Further reading External links