Presidential candidates today frequently use popular pieces of music as campaign "theme songs" often without approval from the musicians themselves. But using music on the campaign trail is not a modern phenomenon: it goes back to our earliest presidential elections.
All over the world, there are ruins of once-thriving cultures. The author of the Pulitzer Prize-winning “Guns, Germs, and Steel” explains how environmental factors have often led to civilizations’ collapse, and talks about lessons for the modern world.
- Jared Diamond professor of geography at UCLA
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