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Precisely dating archaeological artifacts is not as easy or harmless as it might seem.The most common method, radiocarbon dating, requires that a piece of an organic object be destroyedwashed with a strong acid and base at high temperature to remove impurities, and then set aflame.Every living thing on earth contains the element carbon.When an organism dies, be it a plant or an animal, the carbon acquired during its lifetime begins to decay at a steady, predictable rate, releasing carbon-14, a radioactive isotope with a half-life of 5,730 years.

Everything so far that weve tried to do with the nondestructive technique has agreed statistically with regular radiocarbon dating, Rowe says, and you basically dont see any change in the sample. Archaeologists, meanwhile, are hailing the discovery as one of the most important in decades, particularly for issues surrounding the repatriation of human remains from Native American burials, which modern tribes dont want to see harmed.Learn more: Radiocarbon Dating is an "Archae Interactive" module from North Carolina State University. A calibrated radiocarbon date is one that has been calibrated to the tree-ring record to adjust for variations in the concentration of atmospheric C-14 over time. In the following article, “Carbon 14—The Solution to Dating David and Solomon? Calibration procedures are complex and periodically revised as new information comes to light, skewing the radiocarbon dating accuracy.” Lily Singer-Avitz attempts to answer these questions. And statistical models also vary from researcher to researcher.

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