According to Takayasu, the earliest traces of cannabis in Japan are seeds and woven fibers discovered in the west of the country dating back to the Jomon Period (10,000 BC – 300 BC). Archaeologists suggest that cannabis fibers were used for clothes – as well as for bow strings and fishing lines. These plants were likely cannabis sativa – prized for its strong fibers – a thesis supported by a Japanese prehistoric cave painting which appears to show a tall spindly plant with cannabis’s tell-tale leaves.
“Cannabis was the most important substance for prehistoric people in Japan. But today many Japanese people have a very negative image of the plant,” says Takayasu
Via Dorian Q Fuller