[blueplum]

Olmecs and further back, with a penchant for the number 20

[BenLurkin]

Is such a thing even possible...ping

[Auntie Dem]

“...constructed by diverse groups...” obviously they were way ahead of our racist culture. BUT...weren’t they ALL Mexicans?

[BenLurkin]

A vigesimal (/vɪˈdʒɛsɪməl/) or base-20 (base-score) numeral system is based on twenty (in the same way in which the decimal numeral system is based on ten). Vigesimal is derived from the Latin adjective vicesimus, meaning 'twentieth'.

In a vigesimal place system, twenty individual numerals (or digit symbols) are used, ten more than in the usual decimal system. One modern method of finding the extra needed symbols is to write ten as the letter A20 (the 20 means base 20), to write nineteen as J20, and the numbers between with the corresponding letters of the alphabet. This is similar to the common computer-science practice of writing hexadecimal numerals over 9 with the letters "A–F". Another less common method skips over the letter "I", in order to avoid confusion between I20 as eighteen and one, so that the number eighteen is written as J20, and nineteen is written as K20. The number twenty is written as 1020.

https://en.wikipedia.org/wiki/Vigesimal

[ConservativeMind]

It is thought they were constructed by diverse groups between 1,050 BC and 400 BC...

So they enslaved LGBTQ+ as builders?

[ifinnegan]

Is the author trying to use cosmic as a substitute for religious?

[x]

"Cosmic significance?"

Aliens?

[central_va]

They had low rider lama chariots.