Huáng dì 黃帝 / Xuānyuán Huángdì 軒轅黃帝 — the Yellow Emperor, mythical sage-ruler of pre-historic China, conventionally placed in the 27th-century BCE, founding-ancestor of Daoism and traditional Chinese medicine. As a Daoist patriarch he is the receiver of the Way from Guǎngchéngzǐ at Mt. Kōngtóng (cf. Zhuāng zǐ “Zàiyòu” 在宥); the founding revealer-author of the Yīn fú jīng (KR5i0031–KR5i0033); the recipient of the Five-Sprout-Three-One transmission from Tiānzhēn Huángrén at Mt. Émēi; the ascending Daoist who bequeathed the Huáng dì nèi jīng 黃帝內經 medical canon and the Huáng dì jiǔ dǐng shén dān jīng 黃帝九鼎神丹經 outer-alchemy classic. Numerous works of late-imperial Daoism are conventionally pseudepigraphically attributed to him, including KR5i0029 Jīnbì lónghǔ shàngjīng (whose Yellow Emperor attribution is denied by Péng Hàogǔ in his preface). Standard reference: Lewis, The Construction of Space in Early China (SUNY 2006), ch. on the Yellow-Emperor mythography; LeBlanc, Huai-nan Tzu: Philosophical Synthesis (HKU 1985), on the Han-era cult.