Purim is a two-day event beginning at sundown on the fourteenth day of Adar, the twelve month of the Jewish calendar. Every race and religion has their solemn and their festive holidays. Purim is the most festive of the Jewish Holidays. The holiday centers around Queen Esther, King Ahasuerus (or Achashverosh), Mordecahi and Haman. The event took place in the Persian Empire in the fifth century, B.C. It is a celebration of a major victory against oppression of the Jews at that time.