In the fifth episode of our series on history’s most well-known conspiracy theories, we investigate the idea that a highly advanced civilisation existed many thousands of years ago, before being wiped out by a calamitous event. Rob Attar speaks to archaeologist Flint Dibble about the ancient Greek origins of the Atlantis legend and how it has been reimagined in more recent times, including in the Netflix series ‘Ancient Apocalypse’.

History’s Greatest Conspiracy Theories is produced by the team behind BBC History Magazine. For more fascinating stories from the past, head to HistoryExtra, the home of ‘History’s Greatest’ podcasts. There you can find other feeds including History’s Greatest Cities and HistoryExtra LongReads. Find out more at historyextra.com/podcast. We'd love to know what you think about the podcast, so leave us a review and let us know the topics you think we should be covering. Or, follow us on Facebook, X, Instagram or YouTube to keep in touch. You can listen ad-free to this episode and more by subscribing to HistoryExtra Plus here: https://apple.co/4fgRA1d. This episode was hosted by Rob Attar and produced by Jack Bateman. Learn more about your ad choices. Visit podcastchoices.com/adchoices