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As a test, the team took samples of acacia wood from two Egyptian Pharaohs and dated them; the results came back to within what was then a reasonable range: 2800BC /- 250 years whereas the earlier independent dates (largely the dendrochronology records) were 2625 /- 75 years (3), (5).Archaeologists had used Relative Dating methods to calculate their reigns.

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We feel a responsibility to make sure readers of this site go away with factual, truthful information, and this requires a frank correcting of some prevalent misinformation.As with variation in atmospheric radiocarbon concentration, the decay rate of radiocarbon in tree-ring calibration samples would be affected in exactly the same way as the decay rate of radiocarbon in the specimen to be dated.Calibrated radiocarbon dates are immune to any supposed change in decay rate of radiocarbon. This idea is promoted in The Answers Book and other sources.In 1979, Desmond Clark said of the method “we would still be foundering in a sea of imprecisions sometime bred of inspired guesswork but more often of imaginative speculation” (3).Radiocarbon dating may only be used on organic materials.

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