The whole story on distinguishing the age rang of King Wu conquered over Shang by ~(14)C dating

The reliable year of King Wu conquered over Shang Dynasty is an important year in Chinese ancient historiography. Recently ,the technique of 14C dating has been gready improved, and the possibility of distinguishing the year of King Wu conquered over Shang Dynasty using ' C dating was discussed in conferences, some pre ~ research works performed. Since 19%,the program 'Xia~ Shang- Zhou chronology project' has put into practice,our team began to take part in the study of above chronological problems. la early 1998,the samples collected from Fenghao site,Shanxi province,China,were determined in two conventional 14C laboratories vvith the measuring error are less than 3%e. On October 6th and 7th,the results were announced succes-sively that the year of King Wu conquered over Shang Dynasty vvere distinguished in the period of B. C. 1050 to B. C. 1020. in later 1998,the AMS 14C laboratory began dating too. The results of three 14C laboratories are identically vvith each other. 14C dating of the samples unearthed from tombs at Yirmi site,and Liulihe site and wiggle - matching with curve to-gether reached the results that the boundary years coincided with the year range determined above. On November 30th 1998, the result by astronomical calculations were announced, the year of King Wu conquered over Shang Dynasty located also in the age range by 14C dating. From early 1998 to March 2000,almost during two years, the age range distinguished by 14C dating had been examined many times. At last,the results would be trustworthy ac-knowledged.