It is essential because it provides history with the raw material with which they can understand how they were born in that period. In studying documents from the past, examining propaganda of various types can distort someone's thoughts based on someone's perception of the truth, but angled to provide a better case than a disorganized collection of facts could do on its own. In other words, all writers have a purpose in writing, otherwise why write? Stories are no different in this sense from novels and sometimes in other ways too, such as in their disregard for reality, but there is no reason to despair of the truth. There are times when we can come very close to seeing what really happened or at least some historical truths if we approach the data intelligently and in full awareness of the processes that drive the creation of history. For example, if confirmation of a certain historical event comes from several sources whose accounts appear not to have influenced each other, these are called external sources, since too many historians constitute convincing evidence about the existence and nature of an event. In other words, if a soldier who fought in a battle, a general who oversaw the battle, and a doctor who treated the wounded during the battle all record the same basic facts, then we can feel that some things took place along those general lines during the battle. course of the battle. It is highly unlikely that all of these people had the same propaganda agenda. This is the kind of thing you have to look for to track down what really happened. The first thing to do, therefore, is to inform ourselves as much as possible about the data handed down to us by history. We need to ask the author or artist whether the information comes from a work of art and the era in which that information was deposited. We must then ask ourselves how we arrived at this information