Tree ring sampling shows cold spells in Eastern Europe led to unrest over past thousand years
Tuesday, January 15, 2013 - 06:20
in Paleontology & Archaeology
(Phys.org)—A team of Swiss, Czech, Canadian and German researchers has found that prolonged cold spells in Eastern Europe over the last thousand years has led to wars, plagues and civil unrest. In their paper published in the Proceedings of the National Academy of Sciences, the team compares evidence from tree ring samples taken from the Tatra region in Eastern Europe dating back to 1040 A.D., with archival histories to track human activities during the same period.