­ ­You probably have seen or read news stories about fascinating ancient artifacts.

At an ar­chaeological dig, a piece of wooden tool is unearthed and the archaeologist finds it to be 5,000 years old.

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Astronomy Worksheets Biology Worksheets Coloring Worksheets Dinosaur Worksheets Geology Worksheets Geography Worksheets History Worksheets Holiday Worksheets Math Worksheets Language Arts Worksheets All Educational Worksheets Astronomy Music Biology Music Concepts Music Chemistry Music Foreign Language Music Geology Music Geography Music History Music Language Arts Music Life Skills Music Math Music Physics Music All Educational Music In today’s society, the products we consume often come with an expiration date; a date that tells us when we should use the product by: "Best if used by…" Ancient artifacts and fossils do not come with dates stamped on them.

Thus, scientists must use detective work to determine their date of origin.

Carbon-14 dating is a way of determining the age of certain archeological artifacts of a biological origin up to about 50,000 years old.

It is used in dating things such as bone, cloth, wood and plant fibers that were created in the relatively recent past by human activities.

Though widely acknowledged as the oldest state that fits our modern concept of a unified nation, the actual age of the ancient nation of Egypt remains uncertain.

Radiocarbon dating of artifacts from Egypt’s Pre-dynastic period and First Dynasty, reported September 4th in the Proceedings of the Royal Society A by Michael Dee and colleagues, suggests Egypt is younger than previously thought.

Reblando made the images using a tintype process, which lends them a patina of age.

Videographer Matthew Cunningham, who interviewed the subjects of the portraits while Reblando took pictures, asked them to talk about an average day of work, and to reflect on the objects that were their companions in the photo shoot.

It was characterized by large bifaces, particularly hand axes.

This tool-making technology was a more complex way of making stone tools than the earlier Oldowan technology.

Egypt’s ancient timeline has long been a subject of debate.