The correlations between interpopulation genetic and linguistic diversities are mostly noncausal (spurious), being due to historical processes and geographical factors that shape them in similar ways. Studies of such correlations usually consider allele frequencies and linguistic groupings (dialects, languages, linguistic families or phyla), sometimes controlling for geographic, topographic, or...

Acknowledgements The author would like to acknowledge the support of the UK Joint Information Systems Committee (JISC) in the development of the modelling approach underpinning this study, and DEFF for enabling its application in Denmark. Thanks are due to the many people in Denmark who have contributed to this study through Bibliotek og Medier and DEFF. Thanks are also due to the research team...