If history is the sum total of what has ever been going on in the world, historiography is mainly how history has been recorded, passed on, orally and in the written form through centuries by people, families, writers, movers and shakers and also by historians and tells us from what point of view this has been done. Here's a definition:
1 Chronicles 12:32 "Of the sons of Issachar, men who understood the times, with knowledge of what Israel should do, their chiefs were two hundred; and all their kinsmen were at their command".
Historiography refers to the study of the methodology of historians in developing history as an academic discipline, and to a body of historical work on a particular subject. The historiography of a specific topic covers how historians have studied that topic using particular sources, techniques, and theoretical approaches.
It is easy to understand why the same historical events can be written and told from different standpoints by different people at different times; you can just ask 10 different people to describe any event in daily life or an incident and you are likely to have a good number of different stories told about the same event.
It's all a matter of what each person has seen or perceived and which part of the event seems important or convenient to communicate.
This is the challenge about writing history once it has happened. You can do it with many different agendas, points of views, perspectives depending on where you look at it from.
It is to be expected and not always a bad thing in itself, to have different versions or perspectives of different “slices” of history; the problem comes when such and such a version becomes normative or dogmatic when it really should only be a personal or even a collective opinion and presented as such.
Although each “story teller” talks about the same events that took place, one does not end with the same story, since the context, facts, people, intents and needs have not been considered in the same objective way.
Hence, history writing is a very demanding discipline for the one who wants to do a good job of it.
This explains also why after WWII, at the Nuremberg trials, the nazi criminals all had the guts to still deny their responsibility for their guilty acts; of course they tried that trick to avoid judgment if possible but it is also a well known fact that their consciences were so hardened and seared that they totally lacked the necessary honesty and empathy to envision another version or reality than theirs. And so it is and always will be with any criminal, or else they would not be what they are.
And even well after that, although the Holocaust in WWII has undeniably occurred for more than 6 millions Jews, some have still have the guts to come with a revisionist point of view. (note: Historical revisionism (or negationism) is the denial and distortion of the historical record).
On an altogether other subject, the same has been done about the reality of the person of Jesus Christ and his claim to be the Son of God.
Many more historical periods and events have suffered the assault of revisionism to suit the likings, interests and hidden agendas of parties, people groups, nations or tyrants.
This is not only because man's heart is sick, it is also the work of the enemy and of lying spirits.
Jeremiah 17:9 "The heart is more deceitful than all else and is desperately sick; who can understand it?"
We know that man is well capable of anything and its contrary to deny reality, turn things around for his own interest, save face and eventually escape responsibility; dictators and tyrants have always excelled in this and will always resort to this tactic.
So this powerful negative process could be summed up as follows:
Poor or outright bad, sinful decisions leading to denying one's responsibility and blaming others instead (is it not how it all started with Adam/Eve refusing to assume their own responsibility?) and then, abusing people in any way possible leading to discrediting any and all types of leadership, which eventually leads people to depression, feeling of injustice, dishonor, rebellion, disorder, eventually wars and more destruction.
This is the devil's way to ruin the world and unfortunately the vicious cycle that humanity is bound to, due to the curse of sin.
Therefore it has been righty said that he who ignores history (note: or worse - denies it) is bound to repeat it (George Santayana). This is a well accepted fact. Although not inspired nor infallible, it is a worthwhile observation of the ways of man.
Can we not all identify with it at least partly? Who has not had the impression of repeating past failures, sins, patterns, habits?
This vicious failure cycle has been repeating over and over again in history and sadly in the Church too.
But there is hope in that mankind and the earth is longing eagerly for the revealing of the sons of God.
Romans 8:18-23 "For I consider that the sufferings of this present time are not worthy to be compared with the glory that is to be revealed to us. For the anxious longing of the creation waits eagerly for the revealing of the sons of God. For the creation was subjected to futility, not willingly, but because of Him who subjected it, in hope that the creation itself also will be set free from its slavery to corruption into the freedom of the glory of the children of God. For we know that the whole creation groans and suffers the pains of childbirth together until now. And not only this, but also we ourselves, having the first fruits of the Spirit, even we ourselves groan within ourselves, waiting eagerly for our adoption as sons, the redemption of our body".