 For about a millennium, the authorship of the "Cantong qi" has been attributed to Wei Boyang, who was said to have been a southern alchemist from the Shangyu district of Kuaiji in the region of Jiangnan, corresponding to Fenghui () in present-day Shangyu, about east of Hangzhou.The best-known account of Wei Boyang is found in the "Shenxian zhuan" (Biographies of the Divine Immortals), a work attributed to Ge Hong (283-343).According to this record (trans.