The encyclopedia and open conservation database for landrace cannabis populations, their genetics and the traditional knowledge that sustains them.
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Accessions, coloured by the status of their seed lots, with growing places and archaeological sites. Another 582 accessions have no coordinates yet.
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Roxburgh herbarium specimen, 'Bhang. Hind.', India (by 1815)
Roxburgh s.n. is a herbarium accession of Cannabis sativa from the herbarium of William Roxburgh, from India. Two sheets carry the same slip, which names the plant and gives it the name Bhang, marked Hind. Meise Botanic Garden holds one as BR0000023200302 and the Natural History Museum, University of Oslo the other as O-V-2164529.
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Timeline of cannabis history
Timeline of cannabis history lists dated events in the history of cannabis, from fossil pollen and seeds found at excavations to the laws of the twentieth and twenty-first centuries. In each row are the date, what was found, written or done, the place, and the article that describes the event, with that article's source. Excavation sites, historical sources and laws that have pages of their own are listed in the last table.
Where and when cannabis was first domesticated are open questions. The studies below name broad regions and, where they give a date, a range in years before present (BP).
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Learn what an accession is, how to read its fields and maps, and what the status of its seed lot means.
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Field observations, photographs, corrections, sources and translations all strengthen the open record.

