User blog comment:Rassilon of Old/Young Justice spoilers at Comic-Con 2012/@comment-4967138-20120805211615/@comment-34954086-20120808123645

Or for the specifics, His parent were archaeologists, they found the tomb of Teth Adam (later Black Adam), Shazam's older champion, Shazam realises he's screwed chooses their kid as next Champ .old dude in shaodwy cloak lured him into an abandoned subway. They got an crashed through to the Rock of Eternity where Shazam gave him powers. . . . You know when you think about it, Billy's full originswould be Horrible role model for children, Follow a cloaked stranger into abandoned subway stations, diggin into the past will screw over the world and destroy you family. Great messages to send to younger generations, not.

Or a Vit. They arent actually Greek Gods, They're called the Lords of Magic and only share their name with legendary figures. And tbh even without that they arent Greek Gods other then Zeus. Mercury is Roman, Atlas was a Titan, Hercules and Achilles were Demi-God Heroes, and Solomon was a King of Jerusalem.