The focus of this volume is the interdependence of diachrony and synchrony in the investigation of syntactic structure. A diverse set of modern and ancient languages is investigated from this perspective, including Hittite, the Classical languages, Old Norse, Coptic, Bantu languages, Australian languages and Creoles. A variety of topics are covered, including TAM, diathesis, valency, case marking, cliticization, and grammaticalization.