Deriving from Mayan Astrology, the Mayan Zodiac has 20 “day signs.” The calendar is 260 days divided into groups of 20 days. Each group has a “sign.” The calendar is referred to as the Tzolkin Calendar. Mayans were among the first ancient peoples to study the bodies that they observed in the sky. The Mayans did not invent the calendar ... other tribes of indigenous peoples from Central American did so ... but they improved the calendar. The calendar is still used today by some Mayan tribes.
Further notes on
Native American Spirituality:
Native American religions are the spiritual practices of the indigenous peoples of the Americas. Traditional Native American ceremonial ways can vary widely and are based on the differing histories and beliefs of individual tribes, clans, and bands. Early European explorers describe individual Native American tribes, and even small bands, as each having their own religious practices.
Theology may be monotheistic, polytheistic, henotheistic, animistic, shamanistic, pantheistic, or any combination thereof. Traditional beliefs are usually passed down in the forms of oral histories, stories, allegories, and principles, and rely on face to face teaching in one's family and community.