#onThisDay in 1940 #TheJusticeSocietyOfAmerica debuted in #AllStarComics #3 #SuperHeroComicsFirstSuperTeam starts #10YearRun #DCMysteryMen #mostWithoutTheirOwnTitle #fightCrimeTogether #Superman #Batman #recognizedButNotOftenFeatured where #WonderWoman debuted #TheFlash stepsBackAftHeGetsHisOwnTitle