Actually, studying history is very simple. No matter studying the history of China or the history of the world, we should grasp a big timeline, such as the history of China. You should at least know which dynasties China experienced, from the summer to the present, and then put a certain historical time into a specific time period to understand, such as the modern Taiping Heavenly Kingdom Movement (this is simple). Why is this happening? First of all, it appeared when the Manchu dynasty entered a semi-colonial and semi-feudal society. So if you are asked about this exercise time, you can simply set it after 1840 (Opium War), so that your brain power will have a vague outline. Oh, at that time, in order to open the dumping market of goods, capitalist countries carried out colonial aggression all over the world. The Opium War in Qing Dynasty failed and they lost a lot of money. Dogs in the Qing dynasty had no money, which increased the burden on the people. In this way,

This is a simple example, and I can't tell you in detail here. In short, you must know the history and timeline of learning, and then analyze the problems at that time, which will be much easier. If you are a book, focus on textbooks (master the timeline). Look up the information if you don't understand. I hope I can help you. I'm tired, haha ~