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Panoramix
on Jan 25, 2023
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Kaktovik Numerals
https://en.wikipedia.org/wiki/Maya_numerals
The Mayan numerals are also base 20 but like 2000 years older.
ithkuil
on Jan 25, 2023
[–]
TIL Maya used a mixed radix system for calendars, using base 18 for most significant digits and base 20 for least significant digits.
The real world is messy
thaumasiotes
on Jan 26, 2023
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We also use a mixed radix system for calendars, which is why we separate the digits of a date with non-numeric separators.
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The Mayan numerals are also base 20 but like 2000 years older.