These events took place during the days of Ahasuerus,who ruled 127 provinces from India to Cush.
References for Esther 1:1
In those days King Ahasuerus reigned from his royal throne in the fortress at Susa.
References for Esther 1:2
He held a feast in the third year of his reign for all his officials and staff, the army of Persia and Media, the nobles, and the officials from the provinces.
References for Esther 1:3
He displayed the glorious wealth of his kingdom and the magnificent splendor of his greatness for a total of 180 days.
At the end of this time, the king held a week-long banquet in the garden courtyard of the royal palace for all the people, from the greatest to the least, who were present in the fortress of Susa.
White and violet linen hangings were fastened with fine white and purple linen cords to silver rods on marble columns. Gold and silver couches [were arranged] on a mosaic pavement of red feldspar, marble, mother-of-pearl, and precious stones.
References for Esther 1:6