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    Discovery of radio carbon dating

    Precisely dating archaeological artifacts is not as easy or harmless as it might seem.

    Libby of the University of Chicago in immediate post-WW2 years.

    Known as radiocarbon dating, this method provides objective age estimates for carbon-based objects that originated from living organisms.

    The “radiocarbon revolution” made possible by Libby’s discovery greatly benefitted the fields of archaeology and geology by allowing practitioners to develop more precise historical chronologies across geography and cultures.

    The discovery is the 80th National Historic Chemical Landmark to be designated by the American Chemical Society (ACS).

    According to Diane Grob Schmidt, the immediate past president of the ACS, every subject submitted for landmark consideration must fulfill three criteria: it must be more than 25 years old, it must represent a “seminal achievement” in chemistry, and it must have a significant contribution to society.

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