The Letter 'X' Stands for the Unknown, the Mysterious, and the

From Twitter's rebranding to The X-Files to algebra, this single letter has an uncommon amount ofX factor. A historian of mathematics gets to the root of it.

The Letter 'X' Stands for the Unknown, the Mysterious, and the Intangible. Why? - Atlas Obscura

David Hockney's Alphabet - Gloucester Room by railings-gallery-london - Issuu

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Massimo on X: X: the crossroads of meaning, math, mystery and magic The letter X is one of the most enigmatic and versatile characters in the realm of language and symbolisms. Its

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Watch this: how the letter 'x' came to represent the unknown - The Verge

Found this letter in my mailbox from an unknown address. Weird thing is it is hand written and was addressed to me. : r/FoundPaper

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X marks the unknown in algebra – but X's origins are a math mystery

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Voynich manuscript - Wikipedia

How the letter 'X' became history's most mysterious symbol - Fast Company Middle East

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Why is the letter X so appealing?