en_tn_lite_do_not_use/est/01/01.md

In the days of Ahasuerus

"In the time of Ahasuerus" or "When Ahasuerus was ruling as king"

this is Ahasuerus who reigned from India as far as Cush, over 127 provinces

This is background information to help the reader identify Ahasuerus. (See: rc://en/ta/man/translate/writing-background)

provinces

A province is a large area into which some countries are divided for the purposes of government.