Nick Arnold is a British writer of science books for children, best known for the long series Horrible Science. In this fascinating episode, he argues that he has found the site of a second 'Battle of Hastings'.
Stephanie Trouillard is a journalist at France 24, specialising in sports and international history.
Joshua Levine is a historian and author, his latest book The Secret History of the Blitz is out now.
Professor Peter Doyle is a geologist and military historian of twentieth-century conflict. He has a particular interest in World War One and recently co-authored Kitchener's Mob: The New Army to the Somme.
