Yeah, we're close enough. The last field trip we took to the NHM was February 21, 2007. Yep, 5.5 years ago. The 2006 - 2007 school year was the last year our district could afford field trips. Guess it just sucks to be us. We're in LA County. Kids used to get to go to the La Brea Tar Pits too. And the Getty, UCLA, USC, the California Science Center, Reagan Library, the missions...I digress.
I guess I'm confused if you weren't referring to textbooks, why it would matter if "evolution has leached into our history books as facts." Adults can read for themselves and make up their own minds. What do you care if everyone accepts evolution theory? Scientists haven't stopped researching it. If it was proven as "fact" they wouldn't need to explore further.
That's the nature of human beings. We will never stop looking into things in our world. Nor should we. Faith in God and believing that we have evolved over time are not mutually exclusive.
Any history that goes back to the beginning of man. Most world or US history classes don't go back that far. Though almost every school I know makes visits to museums where evolution is displayed as the history of men evolving from apes. Not as a theory but as fact.
My world history in middle, high and college went back to the beginning of man as we know it. I've never been to a natural history museum on a field trip 1x. Never had it offered either.
And they will touch upon evolution because again it is a NATURAL history museum. It wasn't very clear when you said history classes as I never had a natural history class. I had history and I had biology. Evolution was talked about in Biology.