Siegel and his fellow writers had developed the character

Siegel and his fellow writers had developed the character with little thought of building a coherent mythology, but as the number of Superman titles and the pool of writers grew, Captain America Costume    Weisinger demanded a more disciplined approach.Weisinger also introduced letters columns in 1958 to encourage feedback and build intimacy with readers. CCosplay  Weisinger retired in 1970 and Julius Schwartz took over. By his own admission, Weisinger had grown out of touch with newer readers.