Method of dating ancient remains
The Dispilio tablet was one of many artefacts that were found in the area, however the importance of the table lies in the fact that it has an unknown written text on it that goes back further than 5,000 BC.
The wooden tablet was dated using the C12 method to have been made in 5260 BC, making it significantly older than the writing system used by the Sumerians.
You can get an idea of the relationship between C14 and age at the Carbon Dating calculator page. 1950 was chosen for no particular reason other than to honour the publication of the first radiocarbon dates calculated in December 1949 (Taylor, 19).
Although these rocks have been affected by natural processes over the years, these particular holes stand out."These holes are clearly man-made as their regular shapes and diameters suggest, they are different from natural features that appear with the weathering of the rocks.
One of the first questions we get when we present the paper is how these holes were drilled," one of the study's authors, Lenka Varadzinová, a researcher at the Czech Institute of Egyptology, told IBTimes UK."Metal was probably not involved in the process as we find no traces of it.
Much of the information presented in this section is based upon the Stuiver and Polach (1977) paper "Discussion: Reporting of C14 data". 1890 wood was chosen as the radiocarbon standard because it was growing prior to the fossil fuel effects of the industrial revolution.
A copy of this paper may be found in the Radiocarbon Home Page The radiocarbon age of a sample is obtained by measurement of the residual radioactivity. T (National Institute of Standards and Technology; Gaithersburg, Maryland, USA) Oxalic Acid I (C). The activity of 1890 wood is corrected for radioactive decay to 1950.