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The caduceus (☤; ; , ) is the staff carried by Hermes in Greek mythology and consequently by Hermes Trismegistus in Greco-Egyptian mythology. The same staff was borne by other heralds like Iris, the messenger of Hera. The short staff is entwined by two serpents, sometimes surmounted by wings. In Roman iconography, it was depicted being carried in the left hand of Mercury, the messenger of the gods.
Some accounts assert that the oldest imagery of the caduceus is rooted in Mesopotamia with the Sumerian god Ningishzida; his symbol, a staff with two snakes intertwined around it, dates back to 4000 BC to 3000 BC.Gary Lachman, The Quest for Hermes Trismigestus, 2011, Chapter 3, p. x. This iconography may have been a representation of two snakes copulating.
As a symbol, it represents Hermes (or the Roman Mercury), and by extension trades, occupations, or undertakings associated with the god. In later Antiquity, the caduceus provided the basis for the astronomical symbol for planet Mercury. Thus, through its use in astrology, alchemy, and astronomy it has come to denote the planet Mercury and by extension the eponymous planetary metal. It is said that the wand would wake the sleeping and send the awake to sleep. If applied to the dying, their death was gentle; if applied to the dead, they returned to life.
By extension of its association with Mercury and Hermes, the caduceus is also a symbol of commerce and negotiation, two realms in which exchange balanced by reciprocity is recognized as an ideal. This association is ancient, and consistent from classical antiquity to modernity. The caduceus is also a symbol of printing, by extension of the attributes of Mercury associated with writing and eloquence.
Although the Rod of Asclepius, which has only one snake and no wings, is the traditional and more widely used symbol of medicine, the caduceus is sometimes used by healthcare organizations. Given that the caduceus is primarily a symbol of commerce and other non-medical symbology, many healthcare professionals disapprove of this use.
The association of Apollo with the serpent is a continuation of the older Indo-European dragon-slayer motif. Wilhelm Heinrich Roscher (1913) pointed out that the serpent as an attribute of both Hermes and Asclepius is a variant of the "pre-historic semi-chthonic serpent hero known at Delphi as Python", who in classical mythology is slain by Apollo. (citing W. H. Roscher, Omphalos (1913))
One Greek Etiology of the caduceus is part of the story of Tiresias, who found two snakes copulating and killed the female with his staff. Tiresias was immediately turned into a woman, and so remained until he was able to repeat the act with the male snake seven years later. This staff later came into the possession of the god Hermes, along with its transformative powers.
Another myth suggests that Hermes (or Mercury) saw two serpents entwined in mortal combat. Separating them with his wand he brought about peace between them, and as a result the wand with two serpents came to be seen as a sign of peace.
In Rome, Livy refers to the caduceator who negotiated peace arrangements under the diplomatic protection of the caduceus he carried.Livy: Ab Urbe Condita Libri, 31,38,9–10
In his study of the cult of Hermes, Lewis Richard Farnell (1909) assumed that the two snakes had simply developed out of ornaments of the shepherd's crook used by heralds as their staff.Farnell, The Cults of the Greek States, vol. 5, p. 20, cited in Tyson 1932:494. This view has been rejected by later authors pointing to parallel iconography in the Ancient Near East. It has been argued that the staff or wand entwined by two snakes was itself representing a god in the pre-anthropomorphic era. Like the herma or priapus, it would thus be a predecessor of the anthropomorphic Hermes of the classical era. Frothingham characterizes Farnell's simplistic view of the origin of the symbol as a "frivolous and futile theory".
In Egyptian iconography, the Djed pillar is depicted as containing a snake in a frieze of the Dendera Temple complex.
Many early printers such as Erhard Ratdolt, Johann Froben and Johannes Tacuinus used it as their printer's mark. This was often in association with other symbols, such as a cornucopia or a Pegasus. It was also used on the Columbian press, a type of printing press widely used in the 19th century and known for its elaborate scheme of symbolic ornamentation.
The caduceus was used as a publisher's mark by John Churchill, who began publishing medical texts in London in the 1830s. This may have contributed to the symbol's association with medicine.
The customs service of the former German Democratic Republic demonstrated the caduceus' association with thresholds, translators, and commerce in the service medals issued to their staff. The caduceus is also the symbol of the customs agency of Bulgaria and of the financial administration of the Slovakia (Tax and Customs administration). The emblems of Belarus Customs and China Customs 海关关徽 . are a caduceus crossing with a golden key. The emblem of the Federal Customs Service of Russia has a caduceus crossing with a torch on the shield.
The coat of arms of Kyiv National University of Trade and Economics of Ukraine has two crossed torches surmounted by a caduceus on the shield.
Classical antiquity
Mythology
The Homeric Hymn to Hermes relates how his half brother Apollo was enchanted by Hermes's music from his lyre fashioned from a tortoise shell, which Hermes kindly gave to him. Apollo in return gave Hermes the caduceus as a gesture of friendship. The association with the serpent thus connects Hermes to Apollo, as later the serpent was associated with Asclepius, the "son of Apollo".
Iconography
In some vase paintings ancient depictions of the Greek kerukeion are somewhat different from the commonly seen modern representation. These representations feature the two snakes atop the staff (or rod), crossed to create a circle with the heads of the snakes resembling horns. This old graphic form, with an additional crossbar to the staff, seems to have provided the basis for the graphical sign of Mercury (☿) used in Greek astrology from late antiquity."Signs and Symbols Used In Writing and Printing", p 269, in Webster's New Twentieth Century Dictionary of the English Language, unabridged, New York, 1953. Here the symbol of the planet Mercury is indicated as "the caduceus of Mercury, or his head and winged cap".
Origin and comparative mythology
The term kerukeion denoted any herald's staff, not necessarily associated with Hermes in particular. Oxford Classical Dictionary, third edition, ed. Hornblower and Spawforth, s.v. "Hermes".
Ancient Near East
William Hayes Ward (1910) discovered that symbols similar to the classical caduceus sometimes appeared on Mesopotamian cylinder seals. He suggested the symbol originated some time between 3000 and 4000 BC, and that it might have been the source of the Greek caduceus.William Hayes Ward, The Seal Cylinders of Western Asia, Washington, 1910 A.L. Frothingham incorporated Ward's research into his own work, published in 1916, in which he suggested that the prototype of Hermes was an "Oriental deity of Babylonian extraction" represented in his earliest form as a snake god. From this perspective, the caduceus was originally representative of Hermes himself, in his early form as the Underworld god Ningishzida, "messenger" of the "Earth Mother".
The caduceus is mentioned in passing by Walter BurkertBurkert, Greek Religion 1985: II.2.8, p. 158; Burkert notes H. Frankfort, in Iraq, 1 (1934:10) and E.D. van Buren, in Archiv für Orientforschung, 10 (1935/36:53-65). as "really the image of copulating snakes taken over from Ancient Near Eastern tradition".
India
The caduceus also appears as a symbol of the punch-marked coins of the Maurya Empire in India, in the third or second century BC. Numismatic research suggest that this symbol was the symbol of the Buddhist king Ashoka, his personal "Mudra".Damodar Dharmanand Kosambi, Indian Numismatics, Orient Longman, New Delhi 1981, p. 73 ( online). This symbol was not used on the pre-Mauryan punch-marked coins, but only on coins of the Maurya period, together with the three arched-hill symbol, the "peacock on the hill", the triskelis and the Taxila mark.Kailash Chand Jain, Malwa Through the Ages. From the Earliest Time to 1305 A.D., Motilal Banarsidass, Delhi et al. 1972, p. 134 ( online).
It also appears carved in basalt rock in few temples of western ghats.
Early modern use
During the early modern period, the caduceus was used as a symbol of rhetoric (associated with Mercury's eloquence). (2026). 9782503524665, Brepol. ISBN 9782503524665
Modern use
Association with printing
The caduceus has sometimes been associated with printing.
Symbol of commerce
A simplified caduceus is found in dictionaries, as a "commercial term" entirely in keeping with the association of Hermes with commerce. In this form, the staff is often depicted with two winglets and the snakes omitted or reduced to a small ring in the middle.
Confusion with Rod of Asclepius
Computer coding
For use in documents prepared on computer, the symbol has code point in Unicode, at . There is a similar glyph encoded at , an alchemical symbol at , and an astrological one at . For These symbols are Unicode font, especially older ones.
Coats of arms and flags
The symbol is depicted on multiple coats of arms and flags.
See also
Notes
Sources
Further reading
External links
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