Journalists Peter Hitchens and Oliver Kamm, radio presenter and comedian Ellis James, languages expert Ross Perlin, Diana Sutton director of The Bell Foundation and podcaster and academic Reetika Revathy Subramanian join Matthew Sweet for a conversation about how language unites and divides us.

Ross Perlin's book Language City: The Fight to Preserve Endangered Mother Tongues was the winner of the British Academy Book prize and he is in London for the British Academy Summer showcase. Reetika Revathy Subramanian has been chosen as one of six researchers in residence at BBC Radio 4 in the coming year on the New Generation Thinkers scheme run in partnership with the Arts and Humanities Research Council. She is a Senior Research Associate, School of Global Development at the University of East Anglia and hosts the Climate Brides podcast. You can also find a recent episode of Free Thinking exploring peace which features another of the researchers in residence Ashleigh Percival-Borley, a former soldier who is now a military historian based at the University of Durham.

Producer: Debbie Kilbride

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