Growth Rings

A living tree grows one layer of wood each year because the tree grows rapidly in the spring and summer but barely increases in thickness in the autumn and winter. The age of a tree can be accurately determined by growth rings. The width, density, and chemical composition of annual rings can reveal a lot about the climate at a given time, as well as forest fires and other changes that occur during tree growth. Dendrochronologists have discovered many interesting historical facts up to 12,500 years ago while studying ancient wooden products, which can then be used by archaeologists, art historians and specialists in other fields.