#OnThisDay in 1982 #TheMonitor debuted in #NewTeenTitans #comics #21 pops up in #shadowyCameos throughout @dc.com #forTheNext3years to assess #whichHeroesToAssemble for #CrisisOnInfiniteEarth40’s #frontlineDefense #againstHisOpposite #TheAntiMonitor who sought to destroy #TheMultiverse!!