'Deeds' in the Bible

On that night the king could not sleep; so he ordered that the book of records and memorable deeds, the chronicles, be brought, and they were read before the king.

Now as to all the powerful and great deeds of Ahasuerus, along with an exact statement about the high position of Mordecai to which the king promoted him, these things are written in the Book of the Chronicles of the Kings of Media and Persia, are they not?