In the first part of the paper the authoress deals with some methodological problems of research of the Slovak standard language history: 1) what is or what should be a subject of history of standard language research; 2) methods applied in study of arise and development of a standard language. She also refers to utilizing of new methodological approaches (e.g. sociolinguistic approach) in study of standard Slovak history. In the second part she points out the contribution of E. Jona to the Slovak standard history research. E. Jona with his works focused on the history of standard Slovak contributed to knowledge of its development as well as to construction of the methodology of this subject.