In our contemporary Western society, we use a solar calendar system for recording days, months, and years. Many cultures across the world use Lunar calendars from China to the Middle East, to even right here in North America. Many Indigenous Nations across North and South America use a lunar calendar system for recording their days, months, and years. Whether using a solar or lunar calendar, both systems are functioning on the interactions of celestial bodies (e.g. The Earth, the Moon, and the Sun).
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