* Astronomy

Pentecost is the old Greek and Latin name for the Jewish harvest festival, or Festival of Weeks (Hag haShavuot or Shevuot, literally "Festival of Weeks"), which can be found in the Hebrew Bible, Shavuot is called the Festival of Weeks (Hebrew: chag ha-Shavuot, Exodus 34:22, Deuteronomy 16:10 ); Festival of Reaping (Hebrew: chag ha-Katsir, Exodus 23:16 ), and Day of the First Fruits (Hebrew Yom ha-Bikkurim, Numbers 28:26 ).
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