Investigating global developments, issues and affairs.
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A list of objects, people and places inspired by the series.
Listen to the first 25 episodes of Incarnations on the BBC Radio 4 website.
What would the ancient sage and father of medicine's top tips for a healthy life be?
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Economics, society, food, faith and history
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Catch up on some of the most powerful global stories from the last year
Stargazing - from eclipses to the spacecraft changing our view of the Universe
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The essential take on big ideas, issues and trends from the 21st century
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