The 260-day calendar spread throughout the Mesoamerican cultural region, and it is regarded as being the oldest and most important of the calendar systems attested in the region, with an origin pre-dating its first appearances in Mayan inscriptions. https://t.co/aaC6CBYjLq

The 260-day calendar spread throughout the Mesoamerican cultural region, and it is regarded as being the oldest and most important of the calendar systems attested in the region, with an origin pre-dating its first appearances in Mayan inscriptions. pic.twitter.com/aaC6CBYjLq

— Metayantra (@Metayantra) July 30, 2019

from Twitter https://twitter.com/Metayantra

July 30, 2019 at 02:04PM
via IFTTT