Planet Earth

Quote of the Day

Collide-a-ScapeBy Keith KloorJan 5, 2011 7:14 PM

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Here's some sobering context from an archaeologist:

If you look broadly at human history, failure is the norm. What's amazing is when things last.

That observation was made in reference to the Cahokia, a little known and little appreciated pre-Columbian empire that gets the full National Geographic treatment in its current issue.

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