Share this postSeason 4, Day 7 - "The Polio Folio"schooloftrivia.substack.comCopy linkFacebookEmailNotesOtherSeason 4, Day 7 - "The Polio Folio"Alex JacobApr 5, 2022∙ PaidShareShare this postSeason 4, Day 7 - "The Polio Folio"schooloftrivia.substack.comCopy linkFacebookEmailNotesOtherThis post is for paid subscribersSubscribeAlready a paid subscriber? Sign in