John Green asks: How young is history? Unknown 04:51 In this new Vlogbrothers video, John Green tries to put human history into perspective. Share: Email ThisBlogThis!Share to XShare to Facebook Related Posts:"Disco felon": medical condition caused by too much finger snappingMatt Gaetz future sister-in-law speaks out about the "literal pedophile"Jeanne Calment, world's oldest human being, might not have been 122 after allParkland shooting survivor: My QAnon dad is convinced that it was all a hoaxMr. T's 1982 appearance on 'Late Nite with David Letterman' is pure gold
