What is the source of the allusion in the sentence below?
Before forwarding the email to my grandparents, my sister bowdlerized it.

 - history
 - Greek mythology
The source of the allusion bowdlerized is history.
During the eighteenth and nineteenth centuries, British physician Thomas Bowdler reworked Shakespearean plays in an attempt to make the language and subject matter more suitable for children.
The allusion bowdlerized means sanitized.