Happy autumnal equinox
Winter is coming
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Equinoxes and solstices are the only real days in the calendar everything else is fake
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You can’t actually detect those without precise modern measurements since axial tilt effects swamp weather and insolation differences are tiny due to low orbit eccentricity
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They don’t sync up to solar year, so you need horrifying contortions… traditional calendars use them for convenience and ease of detection
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