Radiocarbon dating (or simply carbon dating) is a radiometric dating technique that uses the decay of carbon-14 (14
C) to estimate the age of organic materials, such as wood and leather, up to about 58,000 to 62,000 years Before Present (BP, present defined as AD 1950).[1] Carbon dating was presented to the world by Willard Libby in 1949, for which he was awarded the Nobel Prize in Chemistry.
http://en.wikipedia.org/wiki/Carbon_dating
