Hermes Trismegistus

Ancient mythical figure known for "Emerald Tablet" and "Corpus Hermeticum" (ca. 200 BC - 300 AD) Hermes Trismegistus (Ancient Greek: Ἑρμῆς ὁ Τρισμέγιστος, "thrice-greatest Hermes"; Latin: Mercurius ter Maximus) is the purported author of the Hermetic Corpus, a series of sacred texts that are the basis of Hermeticism. Hermeticism, also called Hermetism, is a religious, philosophical, and esoteric tradition based primarily upon writings attributed to Hermes Trismegistus..