Caduceus 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. One Greek myth of origin 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.
Snake Indians of Canadian history) is meant to refer to Northern Paiute people, or if it is inaccurate, or perhaps entirely unrelated. Snake Indians Snake Indians is a collective name given to the Northern Paiute, Bannock, and Shoshone Native American tribes. The term was used as early as 1739 by French trader and explorer Pierre Gaultier de Varennes, Sieur de la Verendrye when he described hearing of the "Gens du Serpent" ("Snake people") from the Mandans. This is probably the first written mention of the Shoshone people. The term "Snakes" is also used to refer the Shoshone by British explorers David Thompson