The first reason is that Liu Xiu lived in the Eastern Han Dynasty, sandwiched between the Western Han Dynasty and the Three Kingdoms. It is common sense that the Qin Dynasty was followed by the Han Dynasty. But when it comes to some things in the Han Dynasty, people will say that there are more Western Han Dynasty than Eastern Han Dynasty. For example, the Seven Kingdoms Rebellion, Enzhi. The three countries are even more remarkable. After artistic processing, The Romance of the Three Kingdoms became popular throughout East Asia. From the 80-year-old man to the 8-year-old child, who doesn't know that Liu became sworn in Taoyuan and Cao Cao was defeated in Chibi? Sandwiched between these two periods with high historical popularity, the Eastern Han Dynasty, represented by Liu Xiu, was weakened a lot.
The second reason is that the descendants of Liu Xiu are not as good as those of Liu Bang. To put it bluntly, the emperor of the Western Han Dynasty was much stronger than the emperor of the Eastern Han Dynasty. In the Western Han Dynasty, after Mao Liubang, there were two emperors, Wenjing, which opened the rule of Wenjing in the prosperous feudal period of China. His successor, Emperor Wu of the Han Dynasty, was skilled in martial arts and defeated the Xiongnu again and again. However, due to years of belligerence, the national strength of Emperor Wudi was greatly reduced in his last years. Fortunately, Emperor Zhao of Han Dynasty and Emperor Xuan of Han Dynasty were powerful and turned the tide in one fell swoop. The strength of the Western Han Dynasty was to rely on a higher level. The Eastern Han Dynasty was much worse. Except for Liu Xiu's father and son and grandson, most of the emperors in the Eastern Han Dynasty were subject to consorts and eunuch groups, and their life span was not long, which was really wronged.
The third reason is that while Liu Xiu started the Eastern Han Dynasty, he also inherited some stubborn diseases from the Western Han Dynasty. The reason why Wang Mang fell quickly was that his reform measures violated the interests of a powerful family. In order to ascend the throne and unify the whole country, Liu Xiu promised rich profits to the powerful families and won their support. Later, when Liu Xiu became emperor, he also wanted to move their cake, but the powerful family United to put pressure on him, and the matter went away. Directly led to the entire Eastern Han Dynasty, and the powerful family was the same as the local tyrants.
The fourth reason is that Liu Xiu's friends are not well-known, such as the twenty-eight generals of Yuntai. Although their achievements are top-notch, how many people know their names? It's amazing to name one. In sharp contrast, Li Shimin and his twenty-four heroes, such as Lingyange, Qin Qiong and Weichi Gong, have become door gods. Friends are not famous, which will naturally affect the name of big brother.
So it is not easy to leave a deep impression on history. Not everyone knows such an outstanding person as Liu Xiu. There may be many great men in history, but the impression has disappeared in the long river of history.