History
fromwww.thehistoryblog.com
2 days agoNeolithic axe found in Lake Constance
A Neolithic axe discovered in Lake Constance dates back 4,800 years and is now displayed at the Museum of Archaeology in Frauenfeld.
Using pollen data from six lake sediment cores, researchers reconstructed 4,000 years of plant diversity in the western Lake Constance region. Their analysis shows a 48% rise in plant richness between 500 and 1000 CE, during which the number of estimated plant taxa increased from around 27 to 40. Shannon's Diversity Index - a standard measure of ecological diversity - increased by 23%, which corresponds to a 65% rise in the effective number of taxa.