What a wonderful topic. I am racking my brain trying to come up with something that is not well know in the world of literature... but I have come up dry. The best I could come up with is facts about Jane Austen. Because I happen to be a Jane Austen super fan...
Jane Austen fact 1:
The first book Jane Austen sold was Northanger Abby, but the publisher never released it. Jane's brother bought the manuscript back after her death and published it along side her last completed novel Persuasion.
Jane Austen fact 2:
Pride and Prejudice was originally titled First Impressions. But when Jane decide to publish it she changed the title because there was already a book with that title.
Jane Austen fact 3:
Jane Austen wrote under the name "A Lady" because it was not considered ladylike to write novels. But as she gain popularity the name of the author became known. The Prince Regent even ask Jane to dedicate her latest book (Emma) to him.