Purim 2019 will begin in the evening of

Wednesday, March 20 and ends in the evening of Thursday, March 21.

It commemorates the salvation of the Jewish people in ancient Persia from Haman’s plot “to destroy, kill and annihilate all the Jews, young and old, infants and women, in a single day,” as recorded in the Megillah (book of Esther).

When King Ahasuerus had his wife, Queen Vashti, executed for failing to follow his orders, he arranged a beauty pageant to find a new queen. A Jewish girl, Esther, found favor in his eyes and became the new queen, though she refused to divulge her nationality.

Meanwhile, the Jew-hating Haman was appointed prime minister of the empire. Mordechai, the leader of the Jews (and Esther’s cousin), defied the king’s orders and refused to bow to Haman. Haman was incensed, and he convinced the king to issue a decree ordering the extermination of all the Jews on the 13th of Adar, a date chosen by a lottery Haman made.

Mordechai galvanized all the Jews, convincing them to repent, fast and pray to G‑d. Meanwhile, Esther asked the king and Haman to join her for a feast. At a subsequent feast, Esther revealed to the king her Jewish identity. Haman was hanged, Mordechai was appointed prime minister in his stead, and a new decree was issued, granting the Jews the right to defend themselves against their enemies.

On the 13th of Adar, the Jews mobilized and killed many of their enemies. On the 14th of Adar, they rested and celebrated. In the capital city of Shushan, they took one more day to finish the job.