There are three major types of Jewish holidays found in the Jewish calendar. These are:
Biblical Holidays
Rabbinic Holidays
Independent Celebrations
Biblical Holidays
The Bilical Holidays are festivals that are mentioned in either the Torah or other books of the Tanakh. There are two central chapters in the Torah that list the Biblical holidays: Leviticus 23 and Deuteronomy 16. These chapters list two kinds of holidays, the three pilgrimage festivals and the High Holy Days.