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I made a website that tells you, based on the year you graduated high school, what your school (probably) got wrong!
(yourschoolgotwrong.com)
This is for strictly mildly interesting material. If it's too interesting, it doesn't belong. If it's not interesting, it doesn't belong.
This is obviously an objective criteria, so the mods are always right. Or maybe mildly right? Ahh.. what do we know?
Just post some stuff and don't spam.
A lot of their knowledge was from the Sumerians and other ancient civilizations anyway. Sumerians were doing trig thousands of years before the Greeks did; the Greeks' records were just the ones that were preserved.