Aristeia: An aristeia or aristia (/ærᵻˈstiː.ə/; Ancient Greek: ἀριστεία, IPA: [aristěːaː], "excellence") is a scene in the dramatic conventions of epic poetry as in the Iliad, where a hero in battle has his finest moments (aristos = "best").
Also known in contemporary epic (e.g. set piece battles in comic crossovers) as Crowning Moment of Awesome. The relationship seems to go deeper than this, though: the way large comic battles are depicted — the roll calls, the individual combat, the tides and turns — seems, with the obvious changes from an oral to a visual medium, very similar. I think it goes deeper than the straightforward observation that hero is a common term in both, and that metas = (demi)gods; it seems to be a common narrative trait (I'm not familiar with, e.g., Hindu epics, but if I had to bet I'd say that it owes more to the intersection between human cognitive limitations and the synchronous complexity of battles than to an specific cultural tradition).
Anyway, nice to know DC and Marvel do live up to very old traditions (although not even Homer dared have the Greeks do a new siege of troy every year).