#OnThisDay in 1961 #DrXaDu debuted in #AdventureComics #283 #KryptonianScientist #sentencedToThePhantomZone for #conductingExperiments in #HumanSuspendedAnimation later escapes to earth with #hisWife #ErndineZeDa masquerade to #Superboy as #MaAndPaKent & disguisedAs #ClarkKent’s #dentist #50YearsAgo