Just because you learned it in school doesn't mean it's true
Jokes on Them
You need to learn how to do this without your calculators. You can’t expect to have a calculator with you all the time. (Scratch_That_Itch)
Ninth grade health textbook classified allergies as psychosomatic. Even in 1983 that was obsolete.
Reading up on the history of science, it turned out that textbook was decades out of date. The hypothesis had been put forward by one medical doctor in the late forties who even fit it around an Oedipal complex. The idea took fire within the medical community for a decade, then became a topic of dispute because allergic reactions remained consistent under double blind testing (which wouldn’t happen with psychological responses). Among academics the matter was settled once they isolated Immunoglobulin E in 1967.
Yet into the eighties, schoolbooks were still teaching a debunked idea as fact–not even mentioning immunology. The harm was long-lasting; people who have allergies still have difficulty getting accommodation because some people think it’s all in their head. (doublestitch)
That Christopher Columbus was some kind of hero – turns out he’s one of history’s biggest A-holes (jakerad6)