The first documented use of Chaga and other mushrooms and fungi for promoting health and longevity by Asian culture dates back centuries before the time of Christ. Chaga is cited throughout early Russian and Siberian folklore. Referred to in folklore as the "King of Herbs", the health-enhancing properties of Siberian Chaga have been documented for many centuries.
People have known about chaga and its special medicinal properties since so long ago that it still remains a mystery how and when people first discovered this miraculous natural remedy. Mentions of it could be found among the ancient Romans, who imported this birch fungus from barbaric Europe. It was also mentioned in the scientific treatises of Avicenna, and in ancient Russian chronicles and medical references.