Final answer:
Radiocarbon dating by Willard Libby in 1949 allows the estimation of the age of organic materials under 60,000 years old using the decay of carbon-14.
Explanation:
Radiocarbon dating is a technique developed by Willard Libby in 1949 that uses the decay of carbon-14 to estimate the age of organic materials. The half-life of carbon-14 is 5,730 years, making it applicable for dating fossils less than 60,000 years old. This method has been crucial in placing archaeological materials in their proper historical context.
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