Bulgarian is an Indo-European language, a member of the Slavic branch. Bulgarian was the first Slavic language to be written: it started to appear in writing during the 9th century in the Glagolitic alphabet, which was gradually replaced by an early version of the Cyrillic alphabet over the following centuries. Bulgarian demonstrates several linguistic innovations that set it apart from other Slavic languages, such as the elimination of case declension, the development of a suffixed definite article, the lack of a verb infinitive, and the retention and further development of the proto-Slavic verb system.
As of 2007 there are more than 10 million people around the world who speak Bulgarian fluently.
Source - Wikipeadia.com
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