Lexicostatistics avant la lettre
Chapter 14 presents a case study from an angle different from that of philology, taking the historian Johann Christoph Gatterer’s ideas on linguistic diversity as its object. It not only serves as another telling example of the tendency towards systematization, but also, and especially, represents a climax in eighteenth-century attempts at rationalizing the language / dialect distinction. Proposing an embryonic lexicostatistic method, Gatterer tried to find an objective way to use linguistic data in writing an encompassing history of tribes and nations, in particular their prehistory. Starting from a basic vocabulary set, Gatterer attempted to quantify linguistic distance. In doing so, he divided the kinship continuum into four sections: unrelated languages, related languages, dialects, and closely related dialects. His innovative methodology, prefiguring modern lexicostatistic approaches, had only limited success, however. Gatterer failed to put it into practice, and the historian was criticized for his ahistorical method by the grammarian Johann Christoph Adelung.