Historians do not write history, people and events create it. Historians tell their version of history according to their own backgrounds and prejudices. Some do it more honestly than others but there is very little written history that is fact - mostly it is interpretations based on facts. The controversy over Holocaust denial is a prime example of history being distorted by historians (fortunately David Irvine lost in the courts) but differences in interpretation abound even where there are known facts.
All the best