The Measure, Meaning, and Transformation of Aztec Time and Calendars
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Aztec New Fire observance attached cosmic renewal and danger to the Calendar Round, showing genuine catastrophe-related symbolism without establishing an origin in recurring physical disasters.
Challenges
The 52-year Calendar Round is the exact recurrence produced by meshing a 260-day ritual count with a 365-day year: 18,980 days equals both 73×260 and 52×365.