Umacaturthi became one of the most prolific varaint glyphs in cuneiform.  Umacaturthi is a festival in the month of jyaishtha and the first karana
(an astrological measurement that I believe used the pole star Polaris "Dhruva" the actual pole would have been calculated somewhere between it
and the direction of jyaishtha. Mulikarana; the extraction of square-root.
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