In comparison to other cognitive faculties, the study of the human language is particularly fascinating, because it represents a case of culturally transmitted variation.
However, most studies of language variation have revolved around national standard languages, often misleadingly conceived as independent entities. This perspective has fundamentally limited our understanding of a key factor in language variation, that is
Our proposal is to investigate this factor in detail by working from a privileged and largely unexploited perspective, namely the investigation of the modern indigenous Romance (i.e. the direct offspring of Latin) and Greek dialects spoken alongside of each other in Magna Graecia for nearly 2000 years.