David Barton (1991). “America, to Pray Or Not to Pray?: A Statistical Look at What Hapened When Religious Principles Were Separated from Public Affairs”, Wallbuilder Press
Scribbled note in the margins of his copy of Diophantus's Arithmetica. He did not live to provide the promised proof, and the conjecture became famous as Fermat's Last Theorem. In 1993 Andrew Wiles, a British mathematician, claimed to have discovered the proof.
Jane Austen (2006). “8 Books in 1: Jane Austen's Complete Novels. Sense and Sensibility, Pride and Prejudice, Mansfield Park, Emma, Northanger Abbey, Persuasion, Lady Susan, and Love an”, p.307, Shoes & Ships & Sealing Wax