[Tilted Irish Kilt]

pepsi_junkie :" Interesting stuff! "

The science of studying tree rings, and the accurately placing the tree rings
in historical sequence is called dendrochronology.

[pepsi_junkie]

Part of what’s interesing to me is (1) they know how old the wood was when felled (that’s the easy part, count the rings) (2) they know when it was felled (Line up the rings with growth pattern records to lock down the time it grew) and, to me the new part, (3) where it was felled. How do they know which forest it came from? Interesting.