. . . . . . "1980-09-08Z"^^ . . "Willard Frank Libby (December 17, 1908 \u2013 September 8, 1980) was an American physical chemist noted for his role in the 1949 development of radiocarbon dating, a process which revolutionized archaeology and palaeontology."@en . "1908-12-17Z"^^ . . "Willard Frank Libby"@en . .