The correct answer to the question is:
The Mayan Calendar.
The Mayan calendar is a compendium of 7 time accounts, among which there are those of astronomical objects:
- Sun
- Moon
- Venus
The counting of the sun allowed them to identify solstices, the cycle of the moon allowed them to calculate eclipses, as well as the moment in which the moon would be full, waxing or waning, useful knowledge in areas such as agriculture and livestock, finally, the Venus time count is based on an annual count of 584 days.
As a curious fact, since the Mayan calendar showed the end date of December 21, 2012 on its glyph stele, people assimilated that that day the world could end, a subject from which several films emerged.
More information.
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