Hat tip to Christine Kenneally who pointed out this research on climate change, “East African megadroughts between 135 and 75 thousand years ago and bearing on early-modern human origins,” published in PNAS. This is excellent research that comes right on the coat tails of this recent post.
Christopher Scholz and colleagues studied deep sediment cores from [...]
September 3, 2007
Climate Change Drove Human Evolution
September 3, 2007
Challenging Previous Theories on the Origins of Urbanization
Jason Ur, Philip Karsgaard and Joan Oates write in the August 31st issue of Science, that ancient cities did not form because of a centralized political power, as commonly believed, but as the outgrowth of decisions made by smaller groups or individuals. Their paper is titled, “Early Urban Development in the Near East.”
Jason Ur comments,
“The [...]
