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It was erased about 200 years later by a monk who reused the parchment for a prayer book, creating a twice-used parchment book known as a "palimpsest." In the 12th century, parchment - scraped and dried animal skins - was rare and costly, and Archimedes' works were in less demand.
Originally posted by mrwupy
Parchment was scarce in those days and the monk probably thought he was just covering over some math book in order to present what was, in his opinion, a greater truth.
Originally posted by XphilesPhan
this is just another attempt to blame religion, and in particulary christianity, for anything negative.
There was so much knowledge that our ancestors had that has been erased by Religions around the world.