http://wikiless.i2p/wiki/Old_Church_Slavonic?lang=en
The terms Slavic and Slavonic are interchangeable in English. The language is sometimes called Old Slavic , which may be confused with the distinct Proto-Slavic language . Bulgarian, Croatian, Macedonian, Serbian, Slovene and Slovak linguists have claimed Old Church Slavonic; thus OCS has also been variously called Old Bulgarian , Old Macedonian , Old Slovenian , Old Croatian , or Old...