Festivals are the backbone of the Jewish faith; they reflect Jewish history and its teaching.
They fulfill the purpose of festival remembrance by maintaining and passing on, one generation to the next, the emotions of a heritage carried forward into the present and never lost.
They nurture the sense of cohesiveness that has sustained the Jewish people throughout their long and often heartrending history.
In the Jewish calendar, festivals are divided into two segments: major and minor.
During this weeklong holiday, Jewish people eat unleavened bread known asmatzoh in commemoration of the quickly made unleavened bread the Israelites had to subsist on during their escape from Egypt.
During this holiday, which lasts a week, people build little huts, known as sukkahs, where they are required to spend some time in meditation.
All other festivals are considered minor, although Hanukkah, officially a minor festival, has become so popular that it is often celebrated more than some of the major festivals.
The Jewish calendar is a lunar calendar.
This produces the need to add a thirteenth month every now and then so that the major festivals fall in their proper season.
It takes a Jewish mathematician to track what is called the lunisolar structure.