#OnThisDay in 1976 #TheCalculator debuted in #DetectiveComics #463 via #TheAnswerMan #BobRozakis punching keys at #TheAtom #RayPalmer’s associate #TheInventorOfAnEarthquakePoweredDevice & overTheCourse of theNextFewIssues takesOn #BlackCanary #ElongatedMan #GreenArrow #Hawkman & #Batman85 bigFinale