In this episode, we look at the life, legacy and ideas of one of the most influential philosophers in human history, Plato, as we get to the heart of how we debate with each other. Featuring: Mary Margaret McCabe, Professor of Ancient Philosophy Emerita, King’s College London; Catherine Rowett, Emeritus Professor, School of Politics, Philosophy and Area Studies at the University of East Anglia; Dr David Horan, Irish Centre for Platonic Studies at Trinity College Dublin; and Prof Angie Hobbs, Professor of the Public Understanding of Philosophy Emerita at the University of Sheffield.

Featuring: 'The First King of England: Æthelstan and the Birth of a Kingdom' by David Woodman, Professor and Fellow in History at Robinson College, University of Cambridge; 'Queer Georgians', by historian Dr Anthony Delaney; 'Ireland: Mapping The Island', with Joe Brady, co-author; and Changing Ireland at the National Museum of Ireland, with Dónal Maguire, Keeper of Art & Industry collections, and Sandra Heise, Curator of Historical Collections.

On its 220th anniversary, we're debating The Battle of Trafalgar, as we find out about strategy, sacrifice and victory on the high seas.

Featuring Dr Katherine Gazzard from Royal Museums Greenwich, Dr Ciarán McDonnell, historian of 18th century war and society, and Prof Andrew Lambert, Professor of Naval History at King’s College London.