Retrieving "Egyptian Calendar" from the archives

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1. Ancient Timekeeping

   Linked via "Egyptian calendar"

   Stellar Observation and Gnomonics
   The observation of star risings and settings (heliacal rising) was crucial for establishing seasonal markers long before sophisticated calendars were codified. Different cultures assigned critical temporal significance to the heliacal rising of specific stars. For instance, in the Fertile Crescent, the heliacal rising of Sirius (Sopdet)/) signaled the impending annual flooding of the Nile, a relationship formalized in the anci…