There is no direct evidence of the languages spoken in the Neolithic. Some proponents of paleolinguistics attempt to extend the methods of historical linguistics to the Stone Age, but this has little academic support. Criticising scenarios which envision for the Neolithic only a small number of language families spread over huge areas of Europe (as in modern times), Donald Ringe has argued on general principles of language geography (as concerns "tribal", pre-state societies), and the scant remains of (apparently indigenous) non-Indo-European languages attested in ancient inscriptions, that Neolithic Europe must have been a place of great linguistic diversity, with many language families with no recoverable linguistic links to each other, much like western North America prior to European colonisation.