Harry Potter and the Prisoner of Azkaban vs Philosophiæ Naturalis Principia Mathematica
Which book? Pick one and see how the world splits.
- Harry Potter and the Prisoner of Azkaban J. K. Rowling · 1999 50% · #146 in the world
- Philosophiæ Naturalis Principia Mathematica Isaac Newton · 1687 50% · #142 in the world
The world's split right now, from everyone's votes on Books.