#OnThisDay in 1940 #PerryWhite debuted in #@DC.com #Superman #comics #7 as #TheDailyPlanet #Metropolis #newspaper #EditorInChief after he originally made his debut on #TheAdventuresOfSuperman #radioShow #earlierThatYear heads #newsroomCast of #ClarkKent #LoisLane #JimmyOlsen #JackieCooperTheMovie