It’s the Rod of Asclepius, not to be confused with the caduceus!
There are various theories why this symbol was invented. The one that makes most sense to me is that it depicts a (formerly widespread) parasitic nematode being removed by wrapping it around a stick to slowly draw it out of the body.
ClathrateG@hexbear.net 3 weeks ago
greeks en.wikipedia.org/wiki/Rod_of_Asclepius
MonkderVierte@lemmy.zip 3 weeks ago
Ah.