May 16th is Biographers Day. May 16th is the anniversary of the meeting of James Boswell and Samuel Johnson in London in 1763. If you don't know, Boswell wrote a biography of Johnson (Life of Samuel Johnson) that is considered the model for biographies.
So May 16th is a perfect day to encourage your child to write a biography. It can be a biography of a favorite scientist, artist, musician, or historical character. It could also be a biography of a favorite family member. Once your child has someone in mind for the subject of a biography, he can follow a few steps on how to write a biography.
If your child isn't quite ready to write a biography, then encourage her to read one!