These two kinds of videos are two different styles of videos, with completely different emphases.

Historical theme is a term of literary creation, which refers to the theme describing historical events and historical figures. Although historical events and historical figures are selected from historical materials, once the author processes and refines them, he can dig out new ideas.

Popular science works, also known as "popular science works", are works whose main purpose is to popularize scientific knowledge to the public. The word "popular science" refers to the popularization of science. Traditionally, popular science works are based on figures or pictures, but now they often appear in other forms such as video media. Its main function and purpose is to publicize and popularize scientific knowledge. The success of popular science works will also greatly expand social influence and show fascinating science.