Esther 9:16-19

Meanwhile, the remainder of the Jews who were in the king’s provinces also assembled to protect themselves and get relief from their enemies. They killed seventy-five thousand of them but did not lay their hands on the plunder. This happened on the thirteenth day of the month of Adar, and on the fourteenth they rested and made it a day of feasting and joy. The Jews in Susa, however, had assembled on the thirteenth and fourteenth, and then on the fifteenth they rested and made it a day of feasting and joy. That is why rural Jews—those living in villages—observe the fourteenth of the month of Adar as a day of joy and feasting, a day for giving presents to each other.