#OnThisDay in 1963 #RainbowGirl debuted in #AdventureComics #309 #LegionOfSuperHeroes #applicant with hopesOfAccelerating #herActingCareer has quasi-controlOver #EmotionControllingColoredAuras but is #turnedDownForMembership finallyGetsToShine in #The21stCentury in #ActionComics