At first, people knew the history of our country through historical records, but with the in-depth excavation of archaeologists, they found many events that were not recorded in historical records, such as the silk book "Five Elements Zhan" unearthed in Hunan, which recorded the dynasty between Qin and Han Dynasties, namely "Zhang Chu".
"Zhang Chu" is recorded in "Five Stars" in the form of year number, that is to say, "Zhang Chu" is a dynasty in the history of China. Later, archaeologists explained the dynasty of Zhang Chu through other related records in Five Stars. It turned out that "Zhang Chu" was a regime established by Chen Sheng in the early Han Dynasty, which completely replaced the regime of the Qin Dynasty, so people at that time regarded "Zhang Chu" as a new dynasty.
I believe everyone is familiar with the Guangwu Chen Sheng Uprising, but after this incident, many people don't understand it. After the uprising, Chen Sheng directly established the "Zhang Chu regime". He originally wanted to expand Chu, so he took such a name. Later, Chen Sheng led many soldiers to attack Hangu Pass. I didn't expect Zhang Han to have an ambush. Finally, Chen Sheng was defeated and the "Zhang Chu regime" was overthrown.
Finally, the rest of Chen Sheng's soldiers were taken by Xiang Yu for their own use. Xiang Yu made Xiong Xin the new king, and the Han Dynasty was established. Because the "Zhang Chu" dynasty was established for a short time, many people gradually forgot this dynasty, and the history books did not record the relevant information of this dynasty in detail. No one would have thought that there was a "Zhang Chu" dynasty between Qin and Han dynasties if there was no unearthed silk book "Five Stars".