This was difficult at the time due to a lack of sufficiently long master dating chronology and access to suitable structures.

Not until 1998 was a Boston area master dating chronology developed.

There are two types of dates that can be assigned to tree specimens: cutting dates, and noncutting dates.

Which date is assigned to a specimen is dependent on whether or not there is evidence that the last ring present on the specimen was the last ring the tree grew before it died.

Patterns of tree growth will be similar between trees of the same species, growing in the same climate.

Dendroarchaeology is a term used for the study of vegetation remains, old buildings, artifacts, furniture, art and musical instruments using the techniques of dendrochronology (tree-ring dating).

It refers to dendrochronological research of wood from the past regardless of its current physical context (in or above the soil).

This form of dating is the most accurate and precise absolute dating method available to archaeologists, as the last ring that grew is the first year the tree could have been incorporated into an archaeological structure.The utility of tree-ring dating in an environmental sense is the most applicable of the three in today's world.Tree rings can be used to "reconstruct numerous environmental variables" such as "temperature", "precipitation", "stream flow", "drought society", "fire frequency and intensity", "insect infestation", "atmospheric circulation patterns", among others.Tree ring laboratory scientists from Columbia University were some of the first to apply tree-ring dating to the colonial period, specifically architectural timbers in the eastern United States.For agencies like the National Park Service and other historical societies, Dr.Jacoby and Cook began dating historic structures in the lower Hudson River Valley, New Jersey and Eastern Pennsylvania.

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