sentences:  Superman's deeds and selflessness inspired Lee to rededicate his own talents, and Superman's death at the hands of Doomsday galvanized Lee to spend his life honoring Superman's memory, years before he was even born.When Lee returned to civilization, he found that nearly ten years had gone by for the rest of the world, at which point he took to the streets as the Crimson, and later the Crimson Avenger.Superman's appearance as the first costumed hero in "Action Comics" #1 is credited as the beginning of the Golden Age of Comics, but this was removed from continuity during the "Crisis on Infinite Earths".