The very first or the basic evidences that historians use to construct their stories are known to be as primary sources. These sources are generally original records created at the time or after the historical events occurred like a document, an object or an image. This kind of sources provides a window into the past unfiltered access. They are considered to be original and hence the accuracy and reliability to the actual event is very high. Since the primary sources are considered to be the raw data or the first hand eye witness of an actual historical event, the historians finds it to be the crucial resource in order to present the correct historical facts towards the world.