The most effective lies are lies of omission.
For those ignorant of history, those two sentences sound "neutrally reasonable." They're not.
The first we can all agree on. The second is a total lie. No other evil group even comes close in terms of brutality, sustained length of time that brutality has lasted, continues to last, and sheer number of victims killed or enslaved.
Since MOST of human history happened before there was recorded history, one can only imagine all the evil done by people who never recorded their history.
It started out with Cain killing Abel, brother killing brother. They were a template for the rest of our history, weren't they?
One can only imagine the horrors humanity will perform in the future. We won't change as a human race and can only save ourselves individually through Jesus Christ. Nothing will change...until the good Lord ends it all.