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The more recent part of the chronology was constructed from oak logs used in various historic buildings.The more ancient part of the chronology was constructed from oak logs preserved in peat beds, for example.Early in the history of the science of dendrochronology, a tree-ring chronology using bristlecone pines from the White Mountains of California was developed.Separate dendrochronologies were then developed, also in America, using other types of trees, such as Douglas fir.Our Word of the Year choice serves as a symbol of each year’s most meaningful events and lookup trends.

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By matching ring-width patterns in a specimen of known age (starting with living specimens) to ring-width patterns in an older specimen, the proper placement of the older specimen is determined.

Tree Ring yearbooks aren’t just less expensive for parents and students to buy, the software used to create them is completely free for a school to use. Ever struggle to make sure each student feels equally included in your yearbook? With Tree Ring, every student gets two free, uniquely printed pages, so they can fill their yearbook with photos and memories that might not otherwise make the cut.