radiocarbon dating

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Radiocarbon dating in 1988 showed the cloth was made between 1260 and 1390.
放射性碳年代测定法显示，那块布料产于1260年与1390年之间。
Radiocarbon dating confirmed: Bosnia's Moon Pyramid was built about ten thousand years ago!
放射性碳年期测试证实：波斯尼亚的月亮金字塔被建于一万年前！
blog.sina.com.cn
Radiocarbon dating indicates the figure excavated from an archaeological dig in southern Germany, near the Danube valley, was at least 35, 000 years old, the researchers said.
研究人员称，根据放射性碳年代测定法的测定结果，德国南部多瑙河流域附近的一处考古遗址中出土的这尊雕像距今至少有三万五千年。

The Manis site was re-dated, which an accurate radiocarbon dating of 13, 800 years ago.
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Radiocarbon dating showed some of them to be more than 14, 000 years old.
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a technique for determining the age of organic materials, such as wood, based on their content of the radioisotope 14C acquired from the atmosphere when they formed part of a living plant. The 14C decays to the nitrogen isotope 14N with a half-life of 5730 years. Measurement of the amount of radioactive carbon remaining in the material thus gives an estimate of its age (Also called carbon-14 dating)