At present, wormwood has been found, which was first recorded in the silk book unearthed in Mawangdui. Moxibustion with moxa sticks (made of wormwood). If you trace the origin, it is basically synchronized with the application of fire.

Mawangdui was in the Western Han Dynasty, at the beginning of the 2nd century BC. Changsha is the seat of Linxiang County, the capital of Changsha in Han Dynasty. This cemetery was misinformed as the cemetery of Ma Yin, the king of Chu during the Five Dynasties and Ten Kingdoms period, so it was called Mawangdui. She was buried as the mother of Changsha and the "twin daughter" of Tang.