Dove e quando è stato parlato l’indoeuropeo preistorico?

Among the hundreds of place-names of Proto-Indo-European antiquity (i.e. prior to the diachronic transformations into the phonological systems of each Indo-European subgroup), stretching from Europe’s Atlantic Façade to Upper Mesopotamia, ten must and five preferably presuppose specific palaeogeographical contexts (with which ten further place-names are compatible). Next to Anatolia, where at least thirty-seven place-names are of Proto-Indo-European date, about twenty geographical names of the same stratum in the Levant can be best assigned to the 62% of local Neolithic to Bronze-Age population from the Anatolian and Iranian plateaux. In such a way, Palaeo-Geography can date (at least with a tĕrmĭnŭs ăntĕ qu̯ĕm) the imposition – to localized geographical points – of names which Linguistic Reconstruction independently assigns to a specific diachronic phase; this, in turn, connects Population Genetics (whose locations and dates cannot affect linguistic entities) on one side and geographically opaque Linguistic Periodization / Glottochronology on the other.