Wonder Woman, Vol. 1 #310 (1983)

All's Fair... / Avenue XX
When Black Canary thinks that Wonder Woman should not reveal her secret identity to Steve Trevor as she is contemplating doing, she tells Dinah the story of how, in ancient times, Artemis, the first Wonder Woman, fell into a trap of Ares's and was corrupted by not confessing her love for Cleon, a Greek soldier.
Release Date: 1983