On the centenary of the founding of the Irish Free State, we’re joined by English Heritage blue plaques historian Howard Spencer and senior lecturer in modern history at the University of Sheffield, Dr Caoimhe Nic Dháibhéid, to discover how it came to exist, who the key players were and how the story of its creation still resonates today.

To find out more about our London blue plaques, including those relating to the story of the Irish Free State, go to www.english-heritage.org.uk/visit/blue-plaquesLearn more about your ad choices. Visit megaphone.fm/adchoices