The origins of cannabis smoking: Chemical residue evidence from the first millennium BCE in the Pamirs

Abstract Chemical analysis reveals early ritual cannabis smoking in the eastern Pamirs by 2500 years ago. Authors: Meng Ren ⚬, Zihua Tang ⚬, Xinhua Wu, Robert Spengler ⚬, Hongen Jiang, Yimin Yang ⚬, Nicole Boivin Affiliations: Key Laboratory of Vertebrate Evolution and Human Origins of Chinese Academy of Sciences, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, Beijing 100044, P. R. China.; Department of Archaeology and Anthropology, University of Chinese Academy of Sciences, Beijing 100049, P. R. China.;