EN
The author focused his attention to Bartek's writings on the history and development of Slovak language. He shows that Bartek was one of the leading Slovak linguists of his time also in this field. Bartek's analysis of typical phenomena from the oldest history of Slovak language didn't give any complex view of its development. They were mainly explanations aimed to demonstrate originality and independence of Slovak language in the family of the Slavonic languages, especially in the reference to Czech language.