#OnThisDay in 1968 #ChemicalKing debuted in @dc.com #AdventureComics #371 a year after he #1stAppearedAsHonoredDead in #The1stAdultLegionStory #mutant #CondoArlik #PowerToAlterChemicalReactions on #LegionAcademy missionTo spy on #LegionOfSuperVillains #winsLegionMembership downlo dated #InvisibleKid