1940: Whoa! Big change to the logo as Superman #4 reverts to a shield and tosses out the yellow and blue for a black background. April 1940: Meanwhile, the next few Action Comics switched between ...

drove Superman into seclusion, and when he finally returned, he was wearing a logo with a black background, representative of mourning. In Crisis on Infinite Earths, the Lois of Earth-38 asks ...