For decades, scientists have relied on tree rings to estimate how long trees can live. But new research suggests that this widely used method may have been underestimating the lifespan of many ...

Archaeological tree-ring dating: origins and principles -- Lord of the rings: A.E. Douglass and the development of archaeological tree dating, 1914-1929 -- Tree-ring dating at the University of ...

A photo of a shipwreck, buried in silt for centuries and containing cargo in unbroken ceramic vessels, drew the only gasps at a recent seminar on the archaeology of the Mediterranean at the University ...