based on a true event, the original rhyme goes:

Lizzie Borden took an axe,
And gave her mother forty whacks.
Once she saw what she had done,
She gave her father forty-one.

now, to this day, we're not sure if Lizzie Borden actually DID kill her parents, but it IS true that the mother was hit nineteen times, and the father was hit eleven times. I wanted to make the rhyme more historically correct.

oh... and funny thing... mike and I are rewatching the first season of gravity falls, and in the wax statue episode, Lizzie Borden is one of them, though she's not mentioned by name. you can tell it's her by her clothes, hair, and she's holding an axe. though, I think they could've gotten away with calling her by name if they got away with that John Wilkes Booth joke, which was very dark. XD

http://reitanna-seishin.deviantart.com/art/Lizzie-Borden-Took-an-Axe-rewrite-573318151