Here are two links that lead to exploration of the idea of how Morrison's novel contributes to "the story."
Article
http://www.slate.com/articles/arts/the_dilettante/2006/05/why_is_beloved_beloved.html
Tedtalk
https://www.ted.com/talks/chimamanda_adichie_the_danger_of_a_single_story#t-397687
Article
http://www.slate.com/articles/arts/the_dilettante/2006/05/why_is_beloved_beloved.html
Tedtalk
https://www.ted.com/talks/chimamanda_adichie_the_danger_of_a_single_story#t-397687