“九五”国家重点科技项目夏商周断代工程目前已圆满完成。按照该工程成果《夏商周年代表》与房山琉璃河西周燕都遗址考证表明 :北京建城史可以追溯到西周成王时期 ,即公元前 10 42年。中华文明是人类历史上独立起源的古文明之一 ,绵延流传 ,从未中断 ,世所罕见。但是 ,我国古 The “Ninth Five-Year” national key science and technology project of Xia, Shang and Zhou dynasties has now been successfully completed. According to the results of the project, “Xia Shang Anniversary of Representatives” and Fangshan Liulihe West Zhou Yan Du site research shows that: the history of Beijing city can be traced back to the Western Zhou Dynasty, that is, 1042 BC. Chinese civilization is one of the ancient civilizations that were the independent origins of mankind’s history. It spreads and circulates without interruption, and the world is rare. However, ancient China