Chanukah is the Jewish eight-day, wintertime “festival of lights,” celebrated with a nightly menorah lighting, special prayers and fried foods.

The Hebrew word Chanukah means “dedication,” and is thus named because it celebrates the rededication of the Holy Temple (as you’ll read below). Also spelled Hanukkah (or variations of that spelling), the Hebrew word is actually pronounced with a guttural, “kh” sound, kha-nu-kah, not tcha-new-kah.

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On Asarah B'Tevet, the 10th day of the Jewish month of Tevet, in the year 3336 from Creation (425 BCE), the armies of the Babylonian emperor Nebuchadnezzar laid siege to Jerusalem. Thirty months later—on 9 Tammuz 3338—the city walls were breached, and on 9 Av of that year the Holy Temple was destroyed. The Jewish people were exiled to Babylonia for 70 years.

The 15th of Shevat on the Jewish calendar is the day that marks the beginning of a “new year” for trees. Commonly known as Tu Bishvat, this day marks the season in which the earliest-blooming trees in the Land of Israel emerge from their winter sleep and begin a new fruit-bearing cycle.