Revisionism.
The desire to change history to cover up murder, guilt, Sin is nothing new. Today many nations implement their own version of Revisionism or denial. The British have covered up or excused both west-African slavery as a localized event that was well in place before they arrived. But what they fail to explain is that what they did involved the mass humiliation and murder of millions for profit. Ireland is another case, occupation and the advantage when it occurred to starve the population to death.
God wants us to confess our failings to him and turn away from the past, to a New life of honesty and truthfulness. doing what is right with integrity. Job 6:25, Proverbs 12:3, 19:1, Acts 3:19-20,
Ask me and I will tell you! 