Thread:NerdWithAKeyboard/@comment-24374939-20180115000345/@comment-29644557-20180115004439

It's not necessarily the same text, but it's the same history. The Harley Quinn page covers her history from Arkham City to Arkham Knight. The Harley Quinn (Arkhamverse) page also covers this in a lot more detail. The Harley Quinn page rediects to the Arkhamverse page for more information.