It was at the start of the first millennium that the usurper Wang Mang took power, after the decline of the once proud Western Han dynasty, while the second millennium began with the country newly reunified under the Song dynasty, after a protracted period of division.
第一個千禧年是西漢盛極而衰，王莽篡位的開始；第二個千禧年則是分久必合，宋朝統一江山的時代。