text: how come japan and china are in history books, but korea isn't? i mean, people say that korea hasn't contributed to the world much, or did anything significant, but in fact, korea has invented a lot of stuff. also, korea was also the world's most powerful and technologically advanced race in the world. greetings,  are you referring to american junior high and sr. high school history books?  there is so much history to teach most textbooks focus on the major players of american history.  even when the class is titled "world history" it is usually with a bias towards how world history has shaped america and america's allies.  in addition most textbooks are dumbed down so american students can understand them.  if you want a really good history textbook and classes you're going to have to wait until college.  -matt