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The most important archaeological dating method is radiocarbon dating.

It is a technique that can yield absolute dates with accuracy up to approximately 5000 years before present.

Radiocarbon or C14 dating employs complex systems of measuring the unstable isotopes in once living matter.

There are three forms of carbon that naturally occur forming the building blocks of all plant and animal life.

These atoms rapidly decay into radiocarbon-dioxide and along with ordinary CO2 are absorbed by living plants.