According to Antiochus of Syracuse, the term Italy was used by the ancient Greeks to initially refer only to the southern portion of the Bruttium peninsula corresponding to the modern province of Reggio and part of the provinces of Catanzaro and Vibo Valentia in southern Italy. Nevertheless, by his time the larger concept of Oenotria and "Italy" had become synonymous, and the name also applied to most of Lucania as well. According to Strabo's ''Geographica'', before the expansion of the Roman Republic, the name was used by ancient Greeks to indicate the land between the strait of Messina and the line connecting the gulf of Salerno and gulf of Taranto, corresponding roughly to the current region of Calabria. The ancient Greeks gradually came to apply the name "Italia" to a larger region In addition to the "Greek Italy" in the south, historians have suggested the existence of an "Etruscan Italy" covering variable areas of central Italy.