Dan talks to actor, activist, and "part-time suffragette" Kate Willoughby about Emily Davison, the centenary of the Representation of the People Act, and what still needs to be done.
Frank Trentmann is Professor of History at Birkbeck College, his latest book Empire of Things: How We Became a World of Consumers, from the Fifteenth Century to the Twenty-First is out now.
Lawrence James is an English historian and writer. He has written several works of popular history about the British Empire. Lawrence's latest book is entitled Empires in the Sun: The Struggle for the Mastery of Africa.
Joanna Marschner is Senior Curator at Historic Royal Palaces.