In the casino, something as small as the roll of a dice or the spin of the slots holds the thrill of the unknown.

Sign up with Bet Victor, and when you wager 10 euro, you'll get 50 euro in bonuses on selected games, plus 100 free spins on Big Bass Splash.

Place your best bet at Bed Victor.

18 plus new customers only.

Offer expires within seven days of sign-up 40 times wagering requirement.

Visit bedvictor.com,

for Teasancingsgamblingcare.com.

Please gamble responsibly.

This is CBS Eye on the World.

Here's John Batchelor.

This is CBSI on the world.

I'm John Batchel.

Between two rivers, that is Mesopotamia,

sometimes called the Fertile Crescent.

We're traveling back in time,

2,000, 3,000, 4,000 years ago. Thanks to

Mudi al-Rashid, the author of a new book, Ancient Mesopotamia and the Birth of History.

You bet. Taguars and Euphrates rivers. We've known them in war cultures, but this is the beginning

of language as we understand it, written language,

also kingship, also school days, the same, and we will come to that.

Moodia, congratulations, and this is wonderful.

You teach at Oxford College.

...