The approach that was adopted for Anatolia, however, was to rely largely on what is called a "D-score". The D-score does not exist in statistics. It has been used solely with tree rings. D-scores do not have a mathematical derivation -- unlike t-scores, g-scores, and times series. In fact, D-scores were more or less just made up (in an unpublished 1987 thesis), and using them to evaluate a tree-ring match turns out to be little better than rolling dice... The most important of those dates was perhaps for wood from a shipwreck, which was claimed to resolve some of the...