Hohenheim annual ring calendar
The Hohenheim Tree Ring Calendar is a dendrochronological project of the Institute of Botany at the University of Hohenheim in Stuttgart . The institute's tree-ring laboratory has set up a chronology of the tree-rings of trees of different ages, which can be traced back to 10,461 BC. Chr. (2004) extends to today. This tree ring calendar covers the entire period of the Holocene and goes back to the final phase of the last ice age . It is currently the longest tree ring calendar in the world. For this purpose, wood samples from Central Europe, including 6,000 bog oaks and pines from gravel pits in various regions of southern and eastern Germany, were examined.
An international network of researchers is currently working to link dendrochronology with other methods of dating. Gaps between 10,461 BC B.C. and earlier periods for which dendrological data are already available, could thus be closed and the Hohenheim tree-ring calendar extended by about another 2000 years.
With the help of the calendar , the age of musical instruments , works of art , houses or tools can often be determined exactly. The particular successes of the Hohenheim tree ring calendar include the exact dating of the Heuneburg on the Danube , the pile dwellings on Lake Constance and other half-timbered buildings and churches from various ages .
See also
Web links
- University of Hohenheim, AG Dendrochronology
- 14,500 years of uninterrupted history for the first time (press release Heidelberg University of April 1, 2008)