History
Why ancient Mesoamerican math was based on 20
HERE’S THE INTERESTING PART
Because stopping at ten fingers showed a profound lack of ambition, Mesoamerican societies utilized a vigesimal system, meaning everything was based on the number twenty. They factored in their toes to create a complex mathematical framework that perfectly synchronized with their astronomical observations. It made absolute sense to them, even if it makes modern decimal users want to cry.
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