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, and with its physical nature by petrology and metallurgy, turns to the remaining information he can get from his colleagues in the natural sciences.

Prior to the development of radiocarbon dating, it was difficult to tell when an archaeological artifact came from.

Such archaeological finds give us a complex and unprecedented glimpse into human history. Just scroll down for 14 eye-popping artifacts that made 2015 a fascinating year for archaeologists.

Archeology is the scientific study of past human culture and behavior, from the origins of humans to the present.

For example, if an object touches some organic material (like, say, your hand), it can test younger than it really is.

Also, the larger the sample the better, although new techniques mean smaller samples can sometimes be tested more effectively.

More recently is the radiocarbon date of 1950 AD or before present, BP.

There are two techniques for dating in archaeological sites: relative and absolute dating.

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Archaeology is an important field of anthropology, which is the broad study of human culture and biology.Archaeology studies past human behavior through the examination of material remains of previous human societies.These remains include the fossils (preserved bones) of humans, food remains, the ruins of buildings, and human artifactsitems such as tools, pottery, and jewelry.But by using these imprecise methods, archeologists were often way off.Fortunately, Willard Libby, a scientist who would later win the 1960 Nobel Prize in Chemistry, developed the process known as radiocarbon dating in the late 1940s. In a nutshell, it works like this: After an organism dies, it stops absorbing carbon-14, so the radioactive isotope starts to decay and is not replenished.

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