I recently presented a programme called “God Bless the Prince of Wales” for Radio 4. It looked at the 1969 investiture of Prince Charles and the rise and relevance of Welsh nationalism. It was part of the Archive on Four series and drew upon a range of archival sound recordings.
A central theme of the programme was the idea of the stories we tell about ourselves. It looked at the flooding of Tryweryn, its influence on 1969 and how the memory of that event is still central to ideas of Welsh nationalism. History, no matter how selective, is central to understandings of the present. Where people want Wales to go draws upon their ideas of where it has been.
The Daily Telegraph had a nice review of the programme. It argued: “The story gave weight to injustices against Wales, but was balanced in considering wider political problems that Wales faced. It was vibrant and carefully told. … Brexit and Scottish independence currently dominate the conversation about national identity, but this programme gave space to Wales’s story. It was an important piece of social history that showed how rich, complicated and fragile being British really is, for all of us.”
Martin Johnes 
Will have to listen to this.