Archaeological records of Dadiwan in the past 60 ka and the origin of millet agriculture

This paper reports the recent excavation of Unit Dadiwan06 at the Dadiwan site in Qin’an County, Gansu. A 65 ka chronological framework is established for Dadiwan06 on the basis of absolute dating (AMS ¹⁴C and OSL), stratigraphy, climate change events and archaeology. Artifact distributions reveal patterns of human behavioral variation and adaptation over the past 60 ka, from primitive hunting and gathering to advanced hunting and gathering, to primitive Neolithic agriculture, and finally to advanced Neolithic agriculture.