Esther 9:29 TLB

[29] Meanwhile Queen Esther (daughter of Abihail and later adopted by Mordecai the Jew) had written a letter throwing her full support behind Mordecai's letter inaugurating his annual Feast of Purim. In addition, letters were sent to all the Jews throughout the 127 provinces of the kingdom of Ahasuerus with messages of good will and encouragement to confirm these two days annually as the Feast of Purim, decreed by both Mordecai the Jew and by Queen Esther; indeed, the Jews themselves had decided upon this tradition as a remembrance of the time of their national fasting and prayer.