The glow from Christmas tree bulbs will shine with the brightness of menorah candles on Wednesday.

Hanukkah, Judaism’s eight-day Festival of Lights, begins this year on Christmas Day, only the fourth time that’s happened since 1900. For some rabbis, the intersection of the two religious holidays provides an auspicious occasion for interfaith engagement.

For the first time in almost 20 years, this week the beginning of Hanukkah — the eight-day Jewish festival of lights — falls on Christmas Day, a rare quirk of the calendar that has occurred only four times since 1900.

This year, the first night of Hanukkah, the 8-day Jewish Festival of Lights, begins on December 25th, Christmas Day. This has only happened a handful of times in the last 100 years: 2005, 1959, 1921,