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Ancient Knowledge of Japanese Herbal Medicine from Nara
When we become sick or have a physical problem, we naturally take medicine. The Chinese character which denotes medicine is read kusuri and consists of two parts: one represents “plant” and the other signifies “to feel good or better.” Plants are the origin of medicines and our ancestors trialed and investigated them to discover how they could be used to help us recover from sickness and to feel well again.
The oldest historical record referring to herbal medicine in Japan dates back to May 5th, 611 during the Asuka Period (538-710). A troop of imperial nobles went deep into the mountains around Uda, in the northeastern part of Nara, to search for herbal medicines. Uda was already known as an area where fine medicinal herbs could be found and the nobles went so far as to make the area off limits.
Much later, scientific research revealed that the secret of the abundant growth of herbal plants was due to Uda’s soil being rich in inorganic mercury. Animals were naturally attracted and gathered to enjoy the rich feed which made the area even richer. However, this merit of Uda wasn’t actually fully realized until the 18th century, when the 8th Tokugawa Shogun, Yoshimune, carried out a major social reformation. In those days, Japan relied on imported medicine from China.