Social War: Aborigines wanted a formal apology for actions taken during the White Australia movement.
War Over Land: The Gaza Strip. Who really had it first? Where else have people fought over land? (The United Kingdom)
Judaism > Christianity
> Catholicism > Anglicism
Our own world has a history, and that is what makes it true. If you have some knowledge of the history of your story's world, you can place details in the story that relate to its history, and this can help make the story truer, deeper and richer. More authentic.