Caduceus as a symbol of medicine why he chose a herald's wand as a symbol, making it clear that he chose it as a symbol of prudence. This same passage was also earlier referenced by Engle in refuting Garrison's claim. Engle and Friedlander are not the only ones to have noted that the use of the Caduceus by Caius had nothing to do with supposed medical symbolism; as indicated in a publication produced by the Royal College of Physicians itself: "[...] by introducing the caduceus into the ceremony of the College of Physicians, Caius unintentionally added to the confusion between the two emblems for later times,
Planet symbols 🌕) and "waning" (U+263E ☾). The symbol for Mercury(U+263F ) is ultimately derived from the caduceus, or intertwined serpents, which were the main attribute of Mercury/Hermes throughout antiquity. The caduceus was usually shown with at least three loops, but this was simplified to a single loop in the diagram of Kamateros (12th century). The modern symbol has also been interpreted as representing the god's winged headdress. The Venus symbol (♀) consists of a circle with a small cross below it. It originates in Late Antiquity as an astrological symbol for the planet Venus (associated with the goddess Venus), and hence