Ur, in the “Fertile” Crescent. It was a little greener 10,000 years ago, but certainly even then there were better places to start civilization. The relationship between city-states and soil fertility is inverted-U-shaped.
 Posted by   Michael Caton     on Thursday, August 25, 2011

Ur, in the “Fertile” Crescent. It was a little greener 10,000 years ago, but certainly even then there were better places to start civilization. The relationship between city-states and soil fertility is inverted-U-shaped.