Justice League of America #70

Published in March 1969, Justice League of America #70 represents a pivotal moment in the Silver Age of comic books. Written by Denny O'Neil with iconic cover art and interior illustrations by Dick Dillin and Joe Giella, the issue features a narrative centering on the Justice League members facing the threat of the Key. This period of the series is noted for transitioning away from the strictly whimsical tone of the early 1960s toward more complex, character-driven storytelling.

The creative direction under O'Neil and Dillin was aimed at establishing a more grounded atmosphere within the expansive DC Universe. During this era, Dillin began his long-standing tenure as the primary artist for the title, a role he would hold for over a decade. His clear, kinetic style helped solidify the visual identity of the team for a generation of readers, and this specific issue is frequently cited by historians as a hallmark of Dillin's early influence on the JLA's aesthetic.