Esther 1:4

1:4 He displayed the riches of his royal glory and the splendor of his majestic greatness for a lengthy period of time – a hundred and eighty days, to be exact!

Esther 2:10

2:10 Now Esther had not disclosed her people or her lineage, for Mordecai had instructed her not to do so.

Esther 9:21

9:21 to have them observe the fourteenth and the fifteenth day of the month of Adar each year