@econads @irene @DeliaChristina Note: I'm not German, I'm USian.
And I have no idea.The history textbooks we had never made it to World War I (that was college), let alone II. US history was also outside of the RIGOR track I was in (which was suspicious back then, to say the least).
The only thing that comes to mind is how much influence the Texas Board of Education has over textbook publishing (which is a whole and separate thing).