Through four years of efforts, the "Xia-Shang-Zhou Chronology Project" has got new breakthroughs in the chronological study. For example, the conventional :4C-dating of the serial carbon samples from the pre-dynastic Zhou—initial Western Zhou—early Western Zhou--mid Western Zhou strata of the Feng-Hao site shows that Zhou King Wu Wang's conquering the Shang dynasty was within the limits of 1050--1020 BC; the carbon samples from Tomb 8 of the Jin Marquis graveyard are ^14C-dated to 808 -+ 8 BC; the five lunar eclipses recorded in oracle inscriptions of the bin group, according to astronomers' calculation carried out with palaeographers' participation, indicate that Wu Ding's reign can be dated to 1250—1192 BC, corresponding to the results of 14C-dating for the Wu Ding period. The establishment of Xia, Shang and Zhou chronological framework will play an important role in the advance of Chinese chronological study and the development of related disciplines.
