Hemp is native to central Asia and was first cultivated in large quantities in China more than 6,000 years ago. Hemp is a high-value crop with a variety of uses, and in addition to extracting addictive products, products include edible oil, edible hemp seeds, livestock feed, and hemp fiber. Chinese hemp fiber is used to make ropes, fishing nets, and clothing materials for the common people—because silk fabrics are only affordable for the wealthy. Because of its versatility and resilience – it can be grown in a variety of climate zones from sea level to altitudes above 3,000 metres above sea level – it is bound to become a widely cultivated crop. The psychoactive effects of cannabis are valued in many societies, with India being the most important. As early as 2000 BC to 1400 BC, there are records of cannabis medicine in ancient Indian books. Ancient cannabis medicine was made from dried leaves, seeds and stems of wild or cultivated male and female cannabis plants, usually mixed with su...