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unechartreusesvp t1_j3gdl3g wrote

Reply to comment by orsimertank in Earliest evidence of the use of the Mesoamerican 260-day calendar, ‘centuries earlier than its previously known use in textual records,’ revealed by the orientations of newly-uncovered ruins along Mexico’s southern Gulf Coast by marketrent

The 260 days calendar is exclusively for ritual purposes. It's used in conjunction with other astronomical calendars: Solar calendar of 360 days (plus 5 bad days...) Moon calendar, and also a Venus calendar (this one quite important!)

And other bigger cycles.

The Dresden codex it's a beautiful and rich ritual calendar, really interesting.

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orsimertank t1_j3ha2zs wrote

I asked the question because the article is looking at Preclassic, not Postclassic. Dresden codex is Postclassic.

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