Jehoiachin

King Jehoiachin surrenders to Nebuchadrezzar in 597 B.C.E., on the 2nd of Adar. Decades later, he is released in the twelfth month (i.e., Adar), providing a historical precedent for the Purim story, where Adar is a month of changing fortunes. The fate of Jehoiachin is given dramatically different depictions by the prophets Jeremiah and Ezekiel.

Why the rabbis came to imagine Ahasuerus as a usurper who halted the rebuilding of the Temple and his wife Vashti as a wicked and grotesque Babylonian princess, who lived as a libertine and persecuted Jews.