Christopher Ralling, who has died aged 95, brought amazing tales of adventure and human endurance to television in groundbreaking programmes that charted the journeys of the great explorers, from Charles Darwin and David Livingstone to Ernest Shackleton, Thor Heyerdahl and Chris Bonington.
The producer and director, who frequently used drama-documentary to make history come alive for viewers, also chronicled the road to the abolition of slavery in the British Empire.
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