China is an ancient civilization with a long history. In the long history, it has gone through many dynasties (or countries) such as Xia, Shang, Zhou, Qin, Han, Three Kingdoms, Two Jins, Southern and Northern Dynasties (Five Hus and Sixteen Kingdoms), Yan, Tang, Five Dynasties and Ten Kingdoms, Song (Liao, Jin, Xixia), Yuan, Ming, Qing and so on. Among these many dynasties (countries), there are many dynasties (country names) with the same name, such as Xia [Xia, Daxia (Helianxia), Xixia (Tuobaxia, Daxia)], Zhou [Western Zhou, Eastern Zhou, Northern Zhou, Later Zhou, Wu Zhou], Qin [Qin (Warring States Period) ), Qin, Former Qin, Later Qin, Western Qin], Han [Western Han, Eastern Han, Cheng Han, Later Han, Southern Han, Northern Han], Shu [Shu (Liu Han), Shu (Cheng Han), Former Shu, Later Shu], Wei [Wei (Warring States Period), Cao Wei, Northern Wei, Eastern Wei, Western Wei, Ran Wei], Wu [Wu (Spring and Autumn Period), Eastern Wu, Southern Wu], Jin [Western Jin, Eastern Jin, Later Jin], Zhao [Zhao (Warring States Period), Qian Zhao, Later Zhao], Yan [Yan (Warring States Period), Qian Yan, Later Yan, Nan Yan, Bei Yan, Xi Yan ], Liang [Qian Liang, Hou Liang, Southern Liang, Xiliang, Northern Liang], Song [Song (Southern Dynasty), Northern Song, Southern Song], Qi [Qi (Warring States Period), Southern Qi, Northern Qi], Liang [South Liang, West Liang, Hou Liang], Tang [Tang, Later Tang, Southern Tang], etc.
Purpose: To let everyone know more about history