Esther 2:23

2:23 The king then had the matter investigated and, finding it to be so, had the two conspirators hanged on a gallows. It was then recorded in the daily chronicles in the king’s presence.

Esther 8:12

8:12 This was to take place on a certain day throughout all the provinces of King Ahasuerus – namely, on the thirteenth day of the twelfth month (that is, the month of Adar).