Liberal arts students: politics: currency war 1 and 2 history: general history of the world, historical records, twelve emperors of Manchu dynasty, etc. PS: If you think history is too rigorous, I suggest you look at those events in the Ming Dynasty. I can see them clearly. Or read some biographies of famous people, such as Mao Zedong and Sun Yat-sen.. But I recommend you to go to the library, because now some biographies write grandiose words to highlight the greatness of some people, but they don't mention their shortcomings and mistakes at all. When you go to the library, try to find some foreigners who wrote or published n years ago. You will have an unexpected feeling! ) geography: