#OnThisDay in 1945 #GeorgiaSivana debuted in #MaryMarvel #comics #1 #TheWorldsWickedestGirl #daughter of #evilScientist #DrSivana & just as he sought the defeat of #TheOriginalCaptainMarvel she #usedHerGeniusToFollowInHerFathersEvilFootsteps making #TheWorldsMightiestGirl her #archEnemy