#OnThisDay in 1976 #PulsarStargrave debuted in @dc.com #SuperboyAndTheLegionOfSuperHeroes #comics #223 #Colu #scientist & pre #Dazzler #Disco era #StellarEnergyLightShowman claiming to be both #Brainiac4 & #TheOriginalBrainiac escaping #Superman in 20thCentury later #MatterEaterLad #munchesHisNose