Additional Information: Michael G. In the mids, Douglass began to apply tree rings to dating in archaeology. But if most trees only live for a hundred years or so, how can a master chronology go so far back in time? The new sample is dated.
Chronometric dating is more exact, returning an actual date range such as AD — However, we have reason to think that this is not true, as we will see in a later section. Wood Sample B dates back to the year