We should Be Wlear When We Study History!!!

In fact, I am a person who does not support wars, so I never focus on the issue of wars and the history of wars. Thus, this topic is a little bit tough for me. However, China has a long history. I guess I can pick up some famous instances to develop my topic.
In the ancient time, there was a rule that the current dynasty must write the history of previous dynasty. Not only did the current dynasty recover the history, but also the dynasty wanted to use it to alert its emperors that did not lose their countries in the same way as the last previous emperor of the last dynasty. I have to say that the real history has not been recovered totally because the winner writers wanted to show off their remarkable histories. They might highlight their positive aspects; however, the shameful aspects may be covered as the same time. They never mention how many people they killed for gaining the country. They never focus on the issue which how many innocent women were violated by their soldiers. However, the loser writers always claim how terrible the current dynasty is. For example, Taiwan’s Kuomintang, the most powerful party in Taiwan, often claims that the Communist party of China did nothing for fighting against the Japanese Army during World War II. Actually, the Kuomintang tells the truth because the Communist party of China had no weapons to fight at that time. However, the Communist party of China amazingly won the Kuomintang and established new China in 1949. As we can imagine that the party of China never admits the real history. In our history books, they tell students that the party fought for a lot battles for fighting against the Japanese.
History is always a controversial issue. We cannot change the so-called real history, but I hope people can be clear when they study it.