History, in general, only informs us of what bad government is.
There is a widespread difficulty in the Muslim world, which has to do with how the people are taught about examining their own history. A whole range of stuff has been placed off limits.
Last year I was diagnosed with osteoporosis. I was over 50, Caucasian, thin, small-framed, and I have it in my genetic history. It was almost a slam-dunk.