The Historical Purim: the story behind the Book of Esther
https://asknoah.org/wp-content/uploads/RabbiEisen_Purim.mp3
In this audio lesson (3:06), Rabbi Yosef Eisen explains the historical events leading up to the Purim miracle.
You can find more insights on Biblical to modern history with a Torah perspective in Rabbi Eisen’s book, Miraculous Journey.