Cannabis was used as an intoxicant as early as 2,800 years ago | EurekAlert!
An international research team led by the University of Bern has discovered cannabis seeds and molecular traces of psychoactive cannabis compounds in human hair in a princely tomb in Siberia. Radiocarbon dates place the seeds in the early eighth century B.C. According to the research team, this is the oldest directly dated evidence to date for the intoxicating use of cannabis.