#onThisDay in 1939 #TheSandman series began in #AdventureComics #40 two months after his #NewYorkWorldsFair #comics #1 debut #WesleyDodds #SuitCloakFedoraAndGasMaskCladComicBookCrimeFighter KO’d crooks with his #sleepGasGun gets #superHeroSpandexed 1941 & in 1989 @dc.com dreamed up #aWorthysuccessor