Historically the use of cannabis amongst many cultures was acceptable. From the Yangshao culture in China 4800 years ago, to Korea and spreading across Central Asia.
Many centuries-old tombs when excavated have been found to contain Cannabis. Most interestingly was the case of a Chinese Shaman. The tomb being 2800 years old, held an estimated 800 grams of cannabis. The use being for medicine in the afterlife.....