Martin Luther King's I Have a Dream speech revisited
27 August 2013 Last updated at 18:31 BST
To mark the 50th anniversary of Martin Luther King's I Have a Dream speech, BBC Radio 4 asked notable figures to record a recital of the celebrated text.
The Dalai Lama, Stevie Wonder and Doreen Lawrence - mother of murdered teenager Stephen Lawrence - were among those who took part.
The broadcast also included audio from Dr King's original speech in Washington DC.
Listen to it in full here, and see striking images from a period of American history which became a tipping point for social change.
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