pipes uncovered in Ethiopia and carbon-dated to around 1320 CE were
found to have traces of cannabis.
Rubin, 1 January 1975. Cannabis and Culture. Walter de Gruyter. pp.
77–. ISBN 978-3-11-081206-0. Cannabis Smoking in 13th-14th Century
Ethiopia: Chemical Evidence
© 2018 Encyclopedia of Cannabis. All Rights Reserved | Design by