Radiocarbon dating is especially good for determining the age of sites occupied within the last 26,000 years or so (but has the potential for sites over 50,000), can be used on carbon-based materials (organic or inorganic), and can be accurate to within ±30-50 years.Probably the most important factor to consider when using radiocarbon dating is if external factors, whether through artificial contamination, animal disturbance, or human negligence, contributed to any errors in the determinations.Significance Desmond Clark (1979) opinions that if radio carbon dating technique were not discovered, (Clark, 1979:7). Exploratory analysis of the international radiocarbon cross- calibration data: consensus values and interlaboratory error. According to Higham (1999) C14 method can be described as ‘the radio carbon revolution’ which has significantly impacted our understanding about evolution and also cultural emergence of human species. Chances are, right now, you have a Gregorian calendar stuck to your wall.This calendar, with the months January through December, is a business standard used in many places round the world to define the year: one which hearkens back to Christian and Roman Imperial precedents.But other timekeeping methods exist and are still used in the modern world, circumventing the easy processing of dates and history between cultures.
Developed by a team of researchers under the leadership of Dr.That is why radiocarbon dates are now ‘calibrated’ using a tree-ring calibration curve.Tree-ring dates are precise to a single year, and dendro-samples can also be radiocarbon dated, allowing 14C measurements to be correlated with calendar dates.Radiocarbon dating tweaked Libby was wrong about two things.First, the half-life of 14C is actually 5,730 years, and second, he believed that the carbon content of the atmosphere was constant, whereas it is now known that atmospheric carbon levels have varied somewhat over time.Desmond Clark (1979:7) observed that without radiocarbon dating "we would still be foundering in a sea of imprecisions sometime bred of inspired guesswork but more often of imaginative speculation." And as Colin Renfrew (1973) aptly noted over 30 years ago, the "Radiocarbon Revolution" transformed how archaeologists could interpret the past and track cultural changes through a period in human history where we see among other things the massive migration of peoples settling virtually every major region of the world, the transition from hunting and gathering to more intensive forms of food production, and the rise of city-states.