The Star of Life is the international symbol, found on all civil vehicles for medical first aid. It is a six-point blue cross, containing a rod with a snake wrapped around it, the so-called Aesculapian rod.
This symbol origins from Greek mythology: Asclepias (later the Romans re-named him Aesculapio), son of Apollo, was seen as a saint, for being a distributor of care. Belief has it that while sleeping in the temples dedicated to this god, they dreamed about him and received advise about the right cures for their diseases. Taken by madness and his feeling of absolute power, he is even reported to have bought the dead back to life; the goddess Ade complained about this to Jupiter, who therefore struck him down with one of her arrows. In the year 293 b.C. the Romans started to honour Aesculapio because they needed help against an epidemic.