I am writing my paper about the deeper meanings in O'Brien's Story telling. I found a website talking about the history of storytelling. this blog post talks about the history of storytelling and how they were originally told verbally, and how books and stories are a way for us to be heard, and to learn about everything around us.
Credibility: author of the page is an agent for "books and literacy agency"
this article was written in 2011 which makes it current enough, it was 2 years ago, not much has changed with story telling in the past several years.