Suzie Grogan talks about the 'hidden illness' of World War One, now better known as shellshock or PTSD. Dan chats with her about the initial reception to cases of shellshock and how diagnoses changed as we understood the problem better over time.
Simon de Montfort was a member of the English peerage, who led opposition to King Henry III. He played a major role in the constitutional development of the country and remains an important figure in British history. Producer: Peter Curry