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Beautifully detailed maps present historians with a puzzle: How were they made? A mathematical analysis offers some clues.
https://www.discovermagazine.com/the-sciences/the-mystery-of-extraordinarily-accurate-medieval-maps?utm_source=dsctwitter&utm_medium=social&utm_campaign=dsctwitter
🐤 https://twitter.com/DiscoverMag/status/1239846473371713536
