Marc Buxton of "Comic Book Resources" named "Crisis on Infinite Earths" the greatest comic book crossover ever, saying that no crossover has been bigger or as ambitious: "where some events seem hesitant to actually leave a mark on their respective universes, "Crisis" did it with aplomb". He praised the series for exploring the entire DCU and felt it was a fitting event for DC's fiftieth anniversary. "Nerdist News" noted that many of the series' central events—such as the deaths of Supergirl and Barry Allen—have become iconic moments in DC's history.