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"Everything which has come down to us from heathendom is wrapped in a thick fog; it belongs to a space of time we cannot measure.

We know that it is older than Christendom, but whether by a couple of years or a couple of centuries, or even by more than a millenium, we can do no more than guess." [Rasmus Nyerup, (Danish antiquarian), 1802 (in Trigger, 19)].

In this way, calibration tables have been developed that eliminate the discrepancy.

Despite its usefulness, radiocarbon dating has a number of limitations.

Thus carbon-14 has six protons and eight neutrons.) Carbon-12 is by far the most abundant carbon isotope, and carbon-12 and -13 are both stable.

But carbon-14 is slightly radioactive: it will spontaneously decay into nitrogen-14 by emitting an anti-neutrino and an electron, with a half-life of 5730 years.

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Today, there are over 130 radiocarbon dating laboratories around the world producing radiocarbon assays for the scientific community.

First, the older the object, the less carbon-14 there is to measure.

Radiocarbon dating is therefore limited to objects that are younger than 50,000 to 60,000 years or so.

Radiocarbon dating—also known as carbon-14 dating—is a technique used by archaeologists and historians to determine the age of organic material.

It can theoretically be used to date anything that was alive any time during the last 60,000 years or so, including charcoal from ancient fires, wood used in construction or tools, cloth, bones, seeds, and leather.

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