Hanukkah/Chanukah, also known as the Festival of Lights, is an eight-day Jewish holiday commemorating the rededication of the Holy Temple in Jerusalem at the time of the Maccabean Revolt of the 2nd century BCE. Hanukkah is observed for eight nights, starting on the 25th day of Kislev according to the Hebrew calendar, and may occur from late November to late December on the Gregorian calendar. The festival is observed by the kindling of the lights of a special candelabrum, the nine-branched Menorah or Hanukiah, one light on each night of the holiday, progressing to eight on the final night.