coronis is First mentioned by hesiod in catalogue of woman :
"To him [Apollon], then, there came a messenger from the sacred feast to goodly Pytho, a crow, and he told unshorn Phoibos (Phoebus) [Apollon] of secret deeds, that Iskhys (Ischys) son of Elatos had wedded Koronis (Coronis) the daughter of Phlegyas of birth divine."
further coronis is mentioned in literature composed by pindar and ovid that are popular and mostly known by many people.
pindar version : apollo upon knowing that cornois betrayed him by sleeping with another man while still being pregnant with child of apollo sent artemis to kill coronis . when she was on her funeral pyre apollo saved asclepius (Apollo and coronis child) and took him to centuar to teach asclepius.
Ovid version : ovid says that a crow (a/q to him crows were white back then) came and told apollo of cornois secret deeds behind his back and apollo in anger turned the crow black and himself shoot coronis with his arrows but soon repented , tried his best to undo his deed but couldn't. Apollo poured the fragrant myrrh, sweet perfumes on her breast, that once he embraced . unwilling to harm asclepius he saved him from the flames .
This myth connects apollo-crows relationship (crow is sacred to apollo)
TRUTH : Apollophanes, the Arkadian, came to Delphoi and asked the god if Asklepios was the son of Arsinoe and therefore a Messenian, the Pythian priestess gave this response:--‘O Asklepios, born to bestow great joy upon mortals, pledge of the mutual love I enjoyed with Phlegyas' daughter, lovely Koronis, who bare thee in rugged land, Epidauros.’
(Pythia , the mouthpiece of apollo who speaks the words of apollo to the mortals)
Apollo confirmed through the pythia that Apollo and Cornois enjoyed their mutual love saying coronis lovely and praising asclepius
The oracle makes it quite certain the Asklepios was not a son of Arsinoe (some accounts assumed that asclepius was the son of apollo and arsione and that the story of pindar and ovid or hesiod was a fiction invented by them or by one of Hesiod's interpolators, just to please the Messenians."
