“Every good historian is almost by definition a revisionist. He looks at the accepted view of a particular historic episode or period with a very critical eye.”

yes this is very true. i dont take anything someone says at face value, it must be investigated and only an true historian understands that.

All history is biased: Its reporting is dependent on the life experience and base of reference of the historian. This is not to dismiss history just to suggest caution. While some historians have an agenda that they apply, even the most objective historian is vulnerable.