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Rebecca Rideal is an author, editor of History Vault, and a PhD candidate. Here she discusses the Great Fire of London, the subject of her book '1666: Plague, War and Hellfire'.
Dan talks to Albert Lin, who has been using LIDAR technology to reveal tens of thousands of new Mayan structures in Guatemala.
On the 100th anniversary, Gervase Philips tells the story of the Battle of Amiens of 1918.
Lewis Dartnell explains the important role geology has played in human history.