> Particularly when you use today's more sensitive moral yardstick to measure yesterday's actions! [...] History books should also talk about the bad, but it usually doesn't deserve even a single chapter, let alone be a major theme of the book.

Then again, pretty often the bad stuff is what influenced history a lot. And it is simply not true that all the bad stuff was just because back then the poor thing of person did not knew better. Pretty often, the same person being celebrated was the driver of the "bad stuff" , not merely follower acting like everyone else.

And yet again, bad stuff often is what made achievement and victories possible. So then, people who made more ethical decisions did not earned as much. That deserves recognition too.