History is written by the winners
History is written by the winners is a phrase that is often used to describe bias to students who are newly learning history, and it is often repeated throughout learning history and is also used in any other subjects relating to bias and truth changing. Essentially, it states that whoever wins any war (or major conflict, etc) will have their version of truth presented in history, whilst the losers of the war will either not be able to speak at all or else will have their version of truth marginalised. For example, Had Germany won World War II, many things which we accept to be true, such as the holocaust, would today either be completely hidden or else regarded as a conspiracy theory, whilst at the same time there are almost certainly some horrible things that Britain and her allies did that remain hidden to this day that would have been accepted as fact.
The Roman Empire was an important lesson to historians as, for many centuries, certain things were accepted as absolute fact. For example, it was accepted as truth that Rome had created the Olympics and that it had been copied by the Greeks. It was also accepted as truth that the Ancient Romans Gods had come first and that the Greeks had copied their religion.
Eventually, however, evidence was presented which proved absolutely that in fact the Greeks had invented the Olympics and that the Romans had copied it. The same was true of the Roman and Greek Gods, in addition to many other things.
In the wake of this, historians analysed a lot of other accepted facts, to try to determine if in fact we were accepting things to be true which were not really true. Where only 1 bias was presented, a 2nd one was attempted to be found. Historians tried to find accounts written by the losers of wars to try to find out what had been lied about.
Historians to this day are constantly analysing truth to see if it needs to be rewritten. History today is not merely accepted fact, rather it is a matter of great debate and is constantly changing. Accepted history is what is accepted as true, based on evidence, by renowned historians. In some cases, governments still push a different version of the truth.
Many countries, especially countries that vehemently oppose each other, to this day present entirely different perspectives on the truth about major issues. India, for example, regard Zimbabwe as a case where the black majority were racially oppressed and Robert Mugabe is saving the people, who are opposed by Britain who want Zimbabwe to be all white. Britain on the other hand regard Robert Mugabe as an oppressive dictator who murders his own people and uses racism and his own race as an excuse to commit atrocities.