Esther 3:7-8

So in the month of April, during the twelfth year of King Xerxes’ reign, lots were cast in Haman’s presence (the lots were called purim) to determine the best day and month to take action. And the day selected was March 7, nearly a year later. Then Haman approached King Xerxes and said, “There is a certain race of people scattered through all the provinces of your empire who keep themselves separate from everyone else. Their laws are different from those of any other people, and they refuse to obey the laws of the king. So it is not in the king’s interest to let them live.