DC's introduction of the reimagined superheroes did not go unnoticed by other comics companies. In 1961, with DC's JLA as the specific spur, Marvel Comics writer-editor Stan Lee and a robust creator Jack Kirby ushered in the sub-Silver Age "Marvel Age" of comics with the debut issue of "The Fantastic Four". Reportedly, DC ignored the initial success of Marvel with this editorial change until its consistently strengthening sales, albeit also benefiting Independent News' business as their distributor as well, made that impossible. That commercial situation especially applied with Marvel's superior sell-through percentage numbers which were typically 70% to DC's roughly 50%, which meant DC's publications were barely making a profit in comparison after returns from the distributors were calculated while Marvel was making an excellent profit by comparison.