Esther’s command established these matters of Purim, and the matter was officially recorded. ¹ 

to establish these days of Purim in their proper times, just as Mordecai the Jew and Queen Esther had established, and just as they had established both for themselves and their descendants, matters pertaining to fasting and lamentation.

To all the supervisors of the kingdom, the prefects, satraps, counselors, and governors it seemed like a good idea for a royal edict to be issued and an interdict to be enforced. For the next thirty days anyone who prays ¹  to any god or human other than you, O king, should be thrown into a den of lions.