#OnThisDay in 1961 #TheAppellaxians debuted in #JusticeLeagueOfAmerica #comics #9 #noLokiThey but #2YearsAfterTheTeamsDebut #TheSecretOriginOfTheWorldsGreatestSuperHeroes is revealed in the telling of this #extraterrestrialRaceOfBeings’ #attemptToConquerEarth but for #TheJLA’s #teamwork