#OnThisDay in 1955 #AceTheBatHound debuted in @DC.com #Batman #comics #92 #JohnWilkersGermanShepard helped #BruceWayne #rescueHisMaster & since #heHadDistinctMarkingsOnHisHead Batman crafted a #batHood to disguise his ID while on a case after Wilker #leftHimToBruce & #heJoinHisCrimeFightingCrusade