Evidence map›Paper›PMID 31206023›Full record

ArticleScience advances2019

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

Meng Ren, Zihua Tang, Xinhua Wu, Robert Spengler, Hongen Jiang, Yimin Yang, Nicole Boivin

Abstract readHistorical Article
In one paragraph

Article in Science advances, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 48 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
48citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

48 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. The genetics of cannabis lifetime use.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2026
    Pooled it
  2. Article
  3. Article
  4. Review
  5. Review
  6. Pan-Genome Analysis ofInternational journal of molecular sciences · 2025
    Article
  7. Review
  8. Article
  9. Article
  10. Cannabis consumption conundrum: weighing the risks of vaping and smoking.American journal of physiology. Lung cellular and molecular physiology · 2025
    Article
  11. Review
  12. Antidepressant-like Effects ofPharmaceuticals (Basel, Switzerland) · 2024
    Article
  13. Review
  14. Article
  15. Morphometric approaches toVegetation history and archaeobotany · 2024
    Article
  16. Horticulture research · 2023
    Article
  17. Article
  18. Article
  19. A review of cannabis allergy in the early days of legalization.Annals of allergy, asthma & immunology : official publication of the American College of Allergy, Asthma, & Immunology · 2023
    Review
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors.

Meng RenKey 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.ORCID 0000-0002-3549-4640
Zihua TangKey Laboratory of Cenozoic Geology and Environment, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, P. R. China.ORCID 0000-0002-1143-9284
Xinhua WuInstitute of Archaeology, Chinese Academy of Social Sciences, Beijing 100710, P. R. China.
Robert SpenglerDepartment of Archaeology, Max Planck Institute for the Science of Human History, Jena 07745, Germany.ORCID 0000-0002-5648-6930
Hongen JiangDepartment of Archaeology and Anthropology, University of Chinese Academy of Sciences, Beijing 100049, P. R. China.
Yimin YangDepartment of Archaeology and Anthropology, University of Chinese Academy of Sciences, Beijing 100049, P. R. China.ORCID 0000-0003-2745-9498
Nicole BoivinDepartment of Archaeology, Max Planck Institute for the Science of Human History, Jena 07745, Germany.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Cannabis is one of the oldest cultivated plants in East Asia, grown for grain and fiber as well as for recreational, medical, and ritual purposes. It is one of the most widely used psychoactive drugs in the world today, but little is known about its early psychoactive use or when plants under cultivation evolved the phenotypical trait of increased specialized compound production. The archaeological evidence for ritualized consumption of cannabis is limited and contentious. Here, we present some of the earliest directly dated and scientifically verified evidence for ritual cannabis smoking. This phytochemical analysis indicates that cannabis plants were burned in wooden braziers during mortuary ceremonies at the Jirzankal Cemetery (ca. 500 BCE) in the eastern Pamirs region. This suggests cannabis was smoked as part of ritual and/or religious activities in western China by at least 2500 years ago and that the cannabis plants produced high levels of psychoactive compounds.

Indexed as

ArchaeologyBurialCannabisCeremonial BehaviorChinaGas Chromatography-Mass SpectrometryHistory, AncientHumansMarijuana Smoking

Identifiers

PMID31206023
PMCPMC6561734

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.