Did you know that any gold you own was formed from a star exploding? These are the things you learn when Professor David Christian teaches his 'Big History' - a history of humanity.  As a university lecturer Professor Christian pondered on how do we tell the story of the heritage of all humans with some of the grandeur and awe of the great national histories? He realised the human race needed an origin story - And if history is the past, how far back should you look for this origin story? You go all the way back. Connect with Adam Spencer at: https://twitter.com/adambspencer Find PodcastOne Australia on Facebook: https://www.facebook.com/podcastoneau/ Follow PodcastOne Australia on Instagram: https://www.instagram.com/podcastoneau/ Follow PodcastOne Australia on Twitter: https://twitter.com/podcastoneau