#OnThisDay in 1958 #Brainiac debuted in #ActionComics #242 #TheComputerTyrantsOfColu create #Superman’s #SuperComputerMenace @dc.com #originalTrademarkSnafu #LegionOfSuperHeroes #legacy & #biggestRegret: #DCComicsDataSoftware runs slower to #movieTheaters than #MarvelComics #Ultron #maybeThisJuly 🧠