Christopher Columbus spoke to lots of people: his family and kin in Genova, merchants in Venice, royalty in Madrid, the crew of his ship, not to mention the people he met on the other side of the Atlantic. Today, we would consider this a case of multilingualism. But is that how Columbus would have seen it? What language did he think he spoke himself? In the same period a pidgin language developed to allow linguistically diverse communities in the eastern Mediterranean and north Africa to carry out trade, diplomacy, and general communication. We look at the latest research on this language, known as lingua franca, and consider what it might tell us about communication amongst the linguistic communities of the same region today. New Generation Thinker John Gallagher is joined by guests Dr Joanna Nolan, Professor Nandini Das, Dr Birgül Yılmaz, and translator David Bellos.

Producer: Luke Mulhall

Dr Joanna Nolan teaches at SOAS, University of London and is the author of The Elusive Case of Lingua Franca: Fact and Fiction