#OnThisDay in 1958 #CalendarMan debuted in #DetectiveComics #259 #JulianDay #commitsCrimes in #GothamCity inspiredBy #The4Seasons laterDrops #5thSeason clue #Batman85 rightfully deduces as #MonsoonSeason #noFollowUpDateForMoreThanTwoDecadesTho @jamesgunn.bsky.social #littleBrother #SuicideSquadMovie