Wiki's 'Scientific Mythology' page lists some of the antihistorical propaganda which has been produced. Skull & Bones member Andrew Dickson White and others wrote distortions, and attempted to portray "religion vs. science" as an long, ongoing war. The idea is now called 'conflict thesis'.

Their mythology includes (from 1st link)
Quote
That people used to believe in a Flat Earth. While during some periods in history, certain groups have advocated theories of a flat earth, the knowledge that the Earth is likely a sphere of some sort dates back at least to Aristotle. According to historian Jeffrey Burton Russell, this myth has been used to encourage the dichotomy of science and religion.
as well as lies about Galileo, Copernicus, and others.

I know I was taught more than one of these lies, so their campaign seems to have been fairly successful. We know from other threads how stubbornly corrections to textbooks can be resisted. I'd be surprised is some of these lies don't still survive in schoolbooks.

Dark Matter + Dark Energy = Dark Truth

"We find that such evidence demonstrates that the ID argument is dependent upon setting a scientifically unreasonable burden of proof for the theory of evolution." - Judge Jones Kitzmiller case
http://www.talkreason.org/articles/Falsify.cfm

"To Compel A Man To Furnish Funds For The Propagation Of Ideas He Disbelieves And Abhors Is Sinful And Tyrannical." - Thomas Jefferson

"And can the liberties of a nation be thought secure when we have removed their only firm basis, a conviction in the minds of the people that these liberties are the gift of God? That they are not to be violated but with his wrath?" - Thomas Jefferson