Clarifying the timeline for Isaiah Bradley and Steve Rogers—and who predates whom—Robert Morales states in his appendix to the Truth: Red, White & Black trade paperback collection (2004):
Truth was originally planned to be outside of the Marvel Universe's official continuity. The editorial decision to place it into continuity meant explaining Timely Comics' first publication of Joe Simon and Jack Kirby’s Captain America in 1940—a full year before Pearl Harbor and the true start of our story.
Truth co-creator Kyle Baker further clarified the respective timelines of Bradley and Rogers in an interview:
With Captain America, people get on my case for 'changing' Captain America. We got a lot of grief from the Captain America fans on that series until the fifth and sixth issues came out; when it turned out that we hadn't tinkered with the continuity. Before that, everybody was very upset, because our story started with Pearl Harbor, and everybody knows that the first issue of Captain America took place before Pearl. Somewhere in the middle of the series, it's revealed that Cap already existed, and we hadn't tinkered with the timeline, and suddenly, the book is okay.[9]
Editor Axel Alonso described the debate as internet fans unfairly prejudging the series based on assumptions that it tarnished Captain America's legacy.