Sadly that is no longer the case.
Creationism, masked as something called "intelligent design," is making increasing inroads in more and more states. Its backers are using increasingly sophisticated ways to squeeze it into the curriculum of public schools.
The backers of intelligent ignorance argue that evolution is just a theory. Well, yes, I suppose it. But there's a hell of a lot of evidence backing it, and there are no competing ideas out there as to the origin of man--at least none backed with any kind of scientific evidence. And unfortunately science has this pesky requirement that it be backed by evidence.
Is there a place for creationism? Sure, in Sunday school. Creationism, or intelligent design, or whatever smart sounding term you want to use for it, is based entirely on faith. It is theology, NOT science. Merely pointing at the Bible and calling that proof doesn't cut it. That's the kind of narrow minded ignorant thinking that led to something called the Taliban. And yes, I know the Taliban was Muslim, not Christian. But if you go back a few hundred years, the sad fact is that Christianity has its own equally evil skeletons in the closet.
What the hell.... Let's go dig up up Galileo's bones and burn them at the stake. Then we can pass a constitutional amendment making heresy punishable by death.