Hanukkah, the Festival of Lights, is the annual Jewish festival celebrated on eight successive days beginning on the 25th day of Kislev, the third month of the Jewish calendar, corresponding, approximately, to December in the Gregorian calendar. It is also known as the Festival of Lights, Feast of Dedication, and Feast of the Maccabees, Hanukkah commemorates the rededication of the Temple of Jerusalem by Judas Maccabee in 165 BC after the Temple had been profaned by Antiochus IV Epiphanes, king of Syria and overlord of Palestine.

It commencing on the 25th day of the month of Kislev (November/December), to commemorate the victory of the Jews over the Hellenist Syrians in 165 BCE. Following their victory, the Maccabees, sons of the Priestly Hasmonean family which led the Jews in their revolt against the Syrian overlords, entered the Holy Temple in Jerusalem defiled by the Syrian invaders, cleansed it and dedicated it anew to the service of God. Then, in memory of their victory, the Maccabees celebrated the first Hanukkah. In Hebrew, the word "Hanukkah" means "dedication."

After three years of fighting, in the year 3597, or about 165 B.C.E., the Maccabees victoriously reclaimed the temple on Jerusalem's Mount Moriah. Next they prepared the temple for rededication—in Hebrew, Hanukkah means “dedication.” In the temple they found only enough purified oil to kindle the temple light for a single day. But miraculously, the light continued to burn for eight days.

This miracle is commemorated by the lighting of the Hanukkah candles. The candles are placed on the menorah or hanukkiya, a nine-branch candelabrum. The ninth branch of the hanukkiya holds the shamash, or servant light. This branch is lit first and is used to light a new candle on successive nights. The candle lighting is accompanied by the chanting of blessings.

During Hanukkah, gifts are exchanged and children often play the dreidl game.