The Jewish Festival of Lights. It usually falls in early or mid-December. The eight-day holiday celebrates the Maccabees’ victory over the Syrians in the second century B.C. The Maccabees were a first- and second-century B.C. Jewish family that brought about the restoration of Jewish religious and political life. They also made several unsuccessful attempts to overthrow Roman rule in Judea. Hanukkah is the preferred spelling.
To find the date for Jewish holidays in the current or an upcoming year consult the Jewish holidays page on Hebcal.