Introduction dating methods
He was employed at Caltech's Division of Geological & Planetary Sciences at the time of writing the first edition.He is presently employed in the Space & Atmospheric Sciences Group at the Los Alamos National Laboratory."Everything which has come down to us from heathendom is wrapped in a thick fog; it belongs to a space of time we cannot measure.We know that it is older than Christendom, but whether by a couple of years or a couple of centuries, or even by more than a millenium, we can do no more than guess." [Rasmus Nyerup, (Danish antiquarian), 1802 (in Trigger, 19)].In general, academic fields such as archaeology that research material culture associated with the cultural behaviour in human history, dating artefacts is one of the foremost priorities. To this end, the easiest way is to depend on historic records, but historical materials only provide limited information as to the scope of space and time.
Writing of the European Upper Palaeolithic, Movius (1960) concluded that "time alone is the lens that can throw it into focus".
Social and academic controversy recently arose in response to the argument that Jeungdogaja (證道歌字), the metal type produced in Koryo, might be an earlier product than Jikjisimgyeongyojeol (直指心體要節), conventionally believed to be the first metal type ever manufactured, dated to 1377 A. The said issue of the metal types was preceded by a heated debate as to the authenticity of an art piece, Bbalraeteo (the Wash Place) painted by Park Su-geun, which was aucauctioned at KRW 4.5 billon, the highest price for an art auction in Korean history.