Many Americans doubt man-made global warming because they don't think humans could so...

Blog

Why We’re Cruel
I recently read a fascinating explanation for human conduct. We're cruel because we made an...
Why Conquer?
A friend recently asked an interesting question: In history, why does someone who already has...
Torture
Every tyrant throughout all history could argue that torture prevented war, stopped terrorism, or...
The Magic of History
Last year, I spoke at a TEDx Youth conference -- to an audience of smart, motivated high school...
Punctuated Equilibrium: Natural History’s Pattern, and History’s Too
Biologists no longer consider evolution a steady or gradual process. New traits often spread...
The Least Violent Time Ever? Now.
This post's title alone will offend many readers. And I'll make it worse by telling you that the...
Cities, Creativity, and Why the World Will Never Be Flat
How have cities thrived and spread for the last five thousand years when they labor under such...

Six Milestones
These six histories shape our world, yet they’re seldom told. This unique booklet recounts six pivotal events – ancient, medieval, and modern – in brief and simple language, accompanied by detailed maps and beautiful original illustrations.
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