In the twelfth year of King Xerxes, in the first month, the month of Nisan, the Pur (that is, the lot) was cast before Haman to determine a day and month. And the lot fell on the twelfth month, the month of Adar.
Jewish Publication Society of America Version (JPS1917) - Esther 3:7 >In the first month, which is the month Nisan, in the twelfth year of king Ahasuerus, they cast pur, that is, the lot, before Haman from day to day, and from month to month, to the twelfth month, which is the month Adar.