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Using isotope geochemistry, scientists have uncovered new information about the Barmaz necropolis in Valais (Switzerland): 14% of the people buried 6,000 years ago at this site were not locals. What s more, the study suggests that this Middle Neolithic agropastoral society one of the oldest known in the western part of Switzerland was relatively egalitarian. The isotope ratios of carbon, nitrogen and sulphur contained in the bones reveal that all members of the community, including people from elsewhere, had access to the same food resources.

Switzerland generalMassimo chiaradiaLaboratory of archaeology africaSwiss national science foundationDepartment of earthMiddle neolithicJocelyne desideri