Literary hoaxes and an underground cathedral

Max Pearson presents a collection of the week's Witness History interviews from the BBC World Service.

Our guest is literature lecturer Dr Hetta Howes on major literary hoaxes around the world.

We hear about Howard Hughes' fake autobiography, the Salt Cathedral of Zipaquirá in Colombia and how the Indian musician Ravi Shankar taught George Harrison the sitar.

Plus, the Indian woman who led her country's first delegation to the United Nations, the Premier League's first female photographer and how Toy Story revolutionised animation.

Contributors: Clifford Irving - American author who faked an autobiography of Howard Hughes. Dr Hetta Howes - a senior lecturer in English Literature at City St George’s, at the University of London. Jorge Enrique Castelblanco - Colombian engineer behind the Salt Cathedral of Zipaquirá. Ravi Shankar - Indian sitar maestro. Vijaya Lakshmi Pandit - led India's first delegation to the United Nations in 1946. Magi Haroun - the Premier League's first female photographer. Doug Sweetland - animator on Toy Story.

(Photo: Clifford Irving leaving the Chelsea Hotel in New York City, followed by news crews in 1972. Credit: Bettmann Archive / Getty Images)