42 Years Later, Marvel Finally Explains Why Its Main Continuity Is Called Earth-616

Spider-Man celebrates 616 Day by saving Marvel's Earth-616 from destruction, learning from Reddwyn why his universe is so special and how it got its iconic number. Spider-Man is eager to fight his traditional enemies as Earth-616 goes through a rare period of normalcy, but multiversal stability has other plans for Marvel's prime universe. Fortunately, the wall-crawler is there to save his reality.