The Sun, the Moon and the Seasons

This week we mark the beginning of Adar Rishon, or Adar 1, the additional month of a Jewish leap year.  Measuring and marking the passage of time is a universal human preoccupation. At least forty different calendars are in use around the world today.  The most widely used systems are the solar calendar, based on the cycle of the sun, and the lunar calendar, based on the cycle of the ...

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