The research project addresses the interrelated areas of diachronic and synchronic variation in constructional semantics, through an extensive corpus-based investigation of the semantic properties of Dutch argument structure constructions across diachronic, regional, and stylistic varieties of the language. In doing so, the project will contribute towards the integration of methods and models from historical linguistics and variationist sociolinguistics in construction-based grammar and, hence, to the further development of construction grammar as an overall theory of language.