Fantasize about being a character
You fantasize that the history you want to recite is a painting. There are many people or things happening in the picture. Each picture has its own unique story. When you understand his story, you fantasize that you are a character in it, just like acting, because as long as you participate, everything will be unforgettable.
Drawing background
You can also take out a piece of paper and draw the historical background you want to recite, but remember to draw it step by step, and then draw the next thing after you recite it yourself.