#OnThisDay in 1942 Johnny #GeniusJones debuted in @DC.com #AdventureComics #77 #youngBoyStrandedOnADesertIsland with 734 books #readAndMemorizedThemAll before #burningThemToAttractAPassingShip #forRescue #backHome callsHimself #TheAnswerMan acts as #costumedHero who answers ? & #solvesCrimesForADime