#OnThisDay in 1940 #WillEisner’s #16pageTabloidSizeNewsprintComicsInsert & #leadFeature #TheSpirit #maskedCrimefighter #DennyHolt debuted in #RegisterAndTribuneSyndicateSundayNewspapers and republished in #QualityComics #PoliceComics #BigMidCenturySundayComicsStaple #expandingTheMedium until 1952