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A numbering system in the 13th century, numbers from 1 to 9999 = a single symbol (twitter.com/mathematicsucl) 2 points by vinnyglennon on Feb 3, 2021 | past Cistercian monks system for writing numbers up to 10k using a single symbol (twitter.com/mathematicsucl) 3 points by giorgiop on Feb 3, 2021 | past | 1 comment

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