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Lesson PreviewLesson 15 of 20 in this unit

3.15 Ancient and Historical Calendrical Systems

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Civilizations throughout history created calendars to organize work, worship, and political power. In Central America the Aztec solar calendar allowed people to manage agriculture in a demanding environment. Observing the sun’s position among mountain peaks ensured that planting and harvesting matched seasonal rainfall. Timekeeping was a matter of survival and engineering.

In this unit

20 lessons

  1. 3.1Prophecy, Fate, and the Future in PoetryPreview lesson
  2. 3.2DivinationPreview lesson
  3. 3.3Shang Dynasty Oracle BonesPreview lesson
  4. 3.4Forms of DivinationPreview lesson
  5. 3.5Forms of Future TellingPreview lesson
  6. 3.6Michio Kaku’s PredictionsPreview lesson
  7. 3.7Fortune Tellers in ArtPreview lesson
  8. 3.8Music and Fortune TellingPreview lesson
  9. 3.9Resurgence in DivinationPreview lesson
  10. 3.10Younger Generation Engaging with DivinationPreview lesson
  11. 3.11Psychological Mechanisms Behind Belief in DivinationPreview lesson
  12. 3.12Science Fiction and FatePreview lesson
  13. 3.13Chinese Agricultural CalendarPreview lesson
  14. 3.14Gregorian and Chinese CalendarsPreview lesson
  15. 3.15Ancient and Historical Calendrical SystemsThis lesson
  16. 3.16Weather ForecastingPreview lesson
  17. 3.17AI Weather ForecastingPreview lesson
  18. 3.18Difference Between Weather and Climate ModelsPreview lesson
  19. 3.19Systems Thinking and PredictabilityPreview lesson
  20. 3.20Cycles in Culture, Economy, and TechnologyPreview lesson

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