I feel like this is a common story element. Someone has a negative view about a person/group of people, and their worldview is changed after they are forced to spend time with that person/group. This happens in Disney's Pocahontas (and by extension, Avatar), and I have seen a webcomic where it is the focus. But I feel like there has to be a long history of this idea in literature.
I am interested in the history of this plot device. Does anyone know if there is a single story or event from which this originates?