Potters’ Mobility Contributed to the Emergence of the Bell Beaker Phenomenon in Third Millennium BCE Alpine Switzerland: A Diachronic Technology Study of Domestic and Funerary Traditions

International audienceAbstract The spread of the Bell Beaker phenomenon across Europe is still strongly debated today. Small-scale technological studies investigating its integration in local contexts remain rare, even though these are crucial to observing disruptions in traditions. In this article, we studied the ceramic technology of Final Neolithic, Bell Beaker period, and Early Bronze Age settlements of the Upper Rhône valley in Switzerland (3300–1600 BCE). We reconstructed and compared their pottery traditions to those from the contemporaneous megalithic necropolis of Sion ‘Petit-Chasseur’, a major funerary and ritual site located in the centre of the valley. Our findings showed that the Bell Beaker period saw an abundance of simultaneous technical changes, mirroring disruptions identified by other fields, and confirmed that this cultural phenomenon did not blend seamlessly with the local context. More importantly, they revealed the role played by human mobility, with the arrival of potters shortly after 2500 BCE