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Archaelogical dating

When a living thing dies, it stops interacting with the biosphere, and the carbon 14 in it remains unaffected by the biosphere but will naturally undergo decay.

Decay of carbon 14 takes thousands of years, and it is this wonder of nature that forms the basis of radiocarbon dating and made this carbon 14 analysis a powerful tool in revealing the past.

Before this, it was anyone's guess how different digs' timelines compared to one another over great distances. Because the present changes every year, archaeologists, by convention, use A. (Before the Present) is the number of years before the present. For example, the entry of humans into the New World during the Pleistocene (Ice Age) is thought to have occurred by about 15,000 years ago, or 15 ka (which is equivalent to approximately 13,000 B. ka (, thousand years) signifies "thousand calendar years ago," and it is used most often in geological, paleontological, and archaeological reporting to assign a general date to events that occurred a very long time ago.Also, the larger the sample the better, although new techniques mean smaller samples can sometimes be tested more effectively.The data can be a little off particularly in younger artifacts, and anything older than about 50,000 years is pretty much too old to be tested because at that point the majority of the C-14 has decayed to practically undetectable levels.Carbon 14 dating remains to be a powerful, dependable and widely applicable technique that is invaluable to archaeologists and other scientists.The unstable and radioactive carbon 14, called radiocarbon, is a naturally occurring isotope of the element carbon.But archaeology’s aim to understand mankind is a noble endeavor that goes beyond uncovering buried treasures, gathering information, and dating events.It is in knowing what made past cultures cease to exist that could provide the key in making sure that history does not repeat itself.

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