The Jewish calendar is composed of 12 months, each with a unique name. Nisan (5 letters) is the first month of the Jewish year and is celebrated as the month of Passover. ADAR (4 letters) is the twelfth month of the Jewish year and is celebrated as the month of Purim. Elul (4 letters) is the sixth month of the Jewish year and is a time of spiritual preparation for the High Holidays. Iyar (4 letters) is the second month of the Jewish year and is a time of celebration of the giving of the Torah. Iyyar (5 letters) is an alternate spelling of Iyar. Tevet (5 letters) is the fourth month of the Jewish year and is a time of mourning for the destruction of the First and Second Temples.