" Unique Under the Heavens " was a historical novel that contained some historical comparisons and reflections. The following are some historical comparisons that may exist in the novel: 1. The comparison between the Qing Dynasty and the Ming Dynasty: The unique world in the novel happened at the end of the Ming Dynasty and the Qing Dynasty was established after that. Therefore, some of the plots in the novel might involve the historical and cultural background of the Qing Dynasty. 2. The comparison between the grassland tribes and the Han Dynasty: The Zhao State in the novel was established by the Han Dynasty, but the grassland tribes involved in the novel were independent living beings with deep contradictions and conflicts with the Han Dynasty. 3. Comparisons between war and conflict: The novel involves many scenes of war and conflict. For example, the decisive battle of the world may involve some important wars and battles in history, such as the shame of Jingkang, the mutiny of Tumu, etc. 4. The contrast between Han and ethnic minorities: The Zhao State in the novel was established by the Han Dynasty, but the ethnic minorities on the grasslands in the novel had independent consciousness and cultural inheritance. There were profound differences and conflicts with the Han culture. 5. Comparisons between historical celebrities and the characters in the novel: Some characters in the novel such as Huang Taiji, Dorgon, Yue Zhongqi, etc. are all historical celebrities, and some plots in the novel may also have an impact on their historical images. It should be noted that these were only historical facts that might exist in the novel and did not represent historical truth.