This article started with the purpose of discussing the need for research considering the historical context in sociolinguistic research. To this end, in this paper, the term ‘historical socilinguistics’ was first proposed, and the emphasis was placed on presenting the rationale. (1) Interest in language and society existed widely before the term sociolinguistics was coined. In particular, there are cases where the term 'sociology of linguistics' was used before the emergence of the term 'socilinguistics' mentioned in Lee Ik-seop (1994), mixtures are also found. (2) It was discussed that the interest in the relationship between language and society is to study the history of the language community, and that interest in the 'language community' has a long history in itself despite the diversity of concepts. (3) In this paper, the ‘history related to the linguistic phenomenon of a language community’ and ‘social factors as a linguistic environment’ are to be explored as ‘historical sociolinguistics’. (4) The need to study the historical and social factors of language change was discussed not only in terms of phonological, vocabulary, and grammatical changes, but also in the process of creation and settlement of translated academic terms.